Finding the Fourth Proportional to 847,612.80, 1,273,492.80 and 637,660.80
Calculator
Solution
The fourth proportional to 847,612.80, 1,273,492.80 and 637,660.80 is: 958,051.17
Step by Step Solution
- Step 1: Write the proportion equation
847,612.80 : 1,273,492.80 = 637,660.80 : x - Step 2: Convert to fraction form
847,612.80/1,273,492.80 = 637,660.80/x - Step 3: Cross multiply
847,612.80x = 1,273,492.80 × 637,660.80 - Step 4: Simplify right side
847,612.80x = 812,056,437,642.24 - Step 5: Solve for x
x = 812,056,437,642.24/847,612.80 - Step 6: Final answer
x = 958,051.17
Related Problems
Find fourth proportional to 423,806.40, 636,746.40 and 318,830.40
Half scale
Find fourth proportional to 1,695,225.60, 2,546,985.60 and 1,275,321.60
Double scale
Find fourth proportional to 847,613.80, 1,273,494.30 and 637,661.80
Similar ratio
Find fourth proportional to 1,271,419.20, 1,910,239.20 and 956,491.20
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.