The Way to God / Allah

In the calculation we define the straight path as the minimum or shortest distance between any two points. In mathematics it  is  known as "The Displacement". And straight path in Specific Direction which locates the target is known as "Right Path". The Sum of Straight and Right Path is the way of Prosperity.
There may be lot of ways for a passenger to approach his bourne, but  if chooses the straight and right path instead of any zig zag or curvature way he  will go early and easily to its bourne.

Same as it Islam shows and guide to its followers,  the right path to approach and contact with Allah and achieve the "Purpose of Human Creation". But every sect or canton claims that it defines straight path and every sect has its own definition.
The solution can be fine easily from Quran
In surah Fatihah the right path are defined as "The path of those whom You have favored. 
And in Surah An-Nisaa vers. # 69 "Those who have been blessed by, Allah, viz. the Prophets, and the Truthful, and Martyrs and the Righteous.

Now problem is solved and answer is cleared. If we want the way of Prosperity we should follow these Personalities and choose their way and adopt their method. Because they are sent as Locators and Guides of the Way to Allah / God.