Finding the Fourth Proportional to 442,083.70, 663,125.55 and 331,491.70
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Solution
The fourth proportional to 442,083.70, 663,125.55 and 331,491.70 is: 497,237.55
Step by Step Solution
- Step 1: Write the proportion equation
442,083.70 : 663,125.55 = 331,491.70 : x - Step 2: Convert to fraction form
442,083.70/663,125.55 = 331,491.70/x - Step 3: Cross multiply
442,083.70x = 663,125.55 × 331,491.70 - Step 4: Simplify right side
442,083.70x = 219,820,615,882.94 - Step 5: Solve for x
x = 219,820,615,882.94/442,083.70 - Step 6: Final answer
x = 497,237.55
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1.5x scale
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.