Finding the Fourth Proportional to 638,517.88, 958,400.10 and 527,330.80
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Solution
The fourth proportional to 638,517.88, 958,400.10 and 527,330.80 is: 791,510.95
Step by Step Solution
- Step 1: Write the proportion equation
638,517.88 : 958,400.10 = 527,330.80 : x - Step 2: Convert to fraction form
638,517.88/958,400.10 = 527,330.80/x - Step 3: Cross multiply
638,517.88x = 958,400.10 × 527,330.80 - Step 4: Simplify right side
638,517.88x = 505,393,891,453.08 - Step 5: Solve for x
x = 505,393,891,453.08/638,517.88 - Step 6: Final answer
x = 791,510.95
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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.