Finding the Fourth Proportional to 437,619.20, 656,428.80 and 260,034.80
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Solution
The fourth proportional to 437,619.20, 656,428.80 and 260,034.80 is: 390,052.20
Step by Step Solution
- Step 1: Write the proportion equation
437,619.20 : 656,428.80 = 260,034.80 : x - Step 2: Convert to fraction form
437,619.20/656,428.80 = 260,034.80/x - Step 3: Cross multiply
437,619.20x = 656,428.80 × 260,034.80 - Step 4: Simplify right side
437,619.20x = 170,694,331,722.24 - Step 5: Solve for x
x = 170,694,331,722.24/437,619.20 - Step 6: Final answer
x = 390,052.20
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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.