Finding the Fourth Proportional to 680,125.36, 938,473.95 and 408,135.46
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Solution
The fourth proportional to 680,125.36, 938,473.95 and 408,135.46 is: 563,167.50
Step by Step Solution
- Step 1: Write the proportion equation
680,125.36 : 938,473.95 = 408,135.46 : x - Step 2: Convert to fraction form
680,125.36/938,473.95 = 408,135.46/x - Step 3: Cross multiply
680,125.36x = 938,473.95 × 408,135.46 - Step 4: Simplify right side
680,125.36x = 383,024,497,281.27 - Step 5: Solve for x
x = 383,024,497,281.27/680,125.36 - Step 6: Final answer
x = 563,167.50
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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.