Finding the Fourth Proportional to 743,115.26, 1,025,562.30 and 420,882.68
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Solution
The fourth proportional to 743,115.26, 1,025,562.30 and 420,882.68 is: 580,853.92
Step by Step Solution
- Step 1: Write the proportion equation
743,115.26 : 1,025,562.30 = 420,882.68 : x - Step 2: Convert to fraction form
743,115.26/1,025,562.30 = 420,882.68/x - Step 3: Cross multiply
743,115.26x = 1,025,562.30 × 420,882.68 - Step 4: Simplify right side
743,115.26x = 431,641,408,838.17 - Step 5: Solve for x
x = 431,641,408,838.17/743,115.26 - Step 6: Final answer
x = 580,853.92
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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.