Finding the Fourth Proportional to 492,753.80, 739,130.70 and 439,609.70
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Solution
The fourth proportional to 492,753.80, 739,130.70 and 439,609.70 is: 659,414.55
Step by Step Solution
- Step 1: Write the proportion equation
492,753.80 : 739,130.70 = 439,609.70 : x - Step 2: Convert to fraction form
492,753.80/739,130.70 = 439,609.70/x - Step 3: Cross multiply
492,753.80x = 739,130.70 × 439,609.70 - Step 4: Simplify right side
492,753.80x = 324,929,025,287.79 - Step 5: Solve for x
x = 324,929,025,287.79/492,753.80 - Step 6: Final answer
x = 659,414.55
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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.