Finding the Fourth Proportional to 743,115.29, 1,025,562.35 and 420,882.71
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Solution
The fourth proportional to 743,115.29, 1,025,562.35 and 420,882.71 is: 580,853.96
Step by Step Solution
- Step 1: Write the proportion equation
743,115.29 : 1,025,562.35 = 420,882.71 : x - Step 2: Convert to fraction form
743,115.29/1,025,562.35 = 420,882.71/x - Step 3: Cross multiply
743,115.29x = 1,025,562.35 × 420,882.71 - Step 4: Simplify right side
743,115.29x = 431,641,459,037.56 - Step 5: Solve for x
x = 431,641,459,037.56/743,115.29 - Step 6: Final answer
x = 580,853.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.