To find the missing number in the sequence provided (1, 5, 25, ___), we need to identify the pattern or rule that governs the progression from one number to the next.
1. Looking at the sequence, we notice that each number is obtained by multiplying the previous number by 5.
2. In the sequence:
- 1 x 5 = 5
- 5 x 5 = 25
- 25 x 5 = 125
Therefore, the missing number in the sequence is 125.
