Finding the Fourth Proportional to 437,891.20, 656,836.80 and 402,461.80
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Solution
The fourth proportional to 437,891.20, 656,836.80 and 402,461.80 is: 603,692.70
Step by Step Solution
- Step 1: Write the proportion equation
437,891.20 : 656,836.80 = 402,461.80 : x - Step 2: Convert to fraction form
437,891.20/656,836.80 = 402,461.80/x - Step 3: Cross multiply
437,891.20x = 656,836.80 × 402,461.80 - Step 4: Simplify right side
437,891.20x = 264,351,720,834.24 - Step 5: Solve for x
x = 264,351,720,834.24/437,891.20 - Step 6: Final answer
x = 603,692.70
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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.