# An online streaming video site has increased its user base 10% during the last 4 months. The site now has 490,804 active users. How many users did the site have 4 months ago?

##### 2 Answers

Apr 27, 2017

#### Explanation:

Apr 27, 2017

#### Explanation:

base = initial base*(1 + rate of increase)^4

initial base = 490804/(1+0.1)^4 = 490804/(1.1)^4

Using Pascal triangle

so that initial base =