Finding the Fourth Proportional to 658,624.98, 908,920.20 and 372,138.48
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Solution
The fourth proportional to 658,624.98, 908,920.20 and 372,138.48 is: 513,561.12
Step by Step Solution
- Step 1: Write the proportion equation
658,624.98 : 908,920.20 = 372,138.48 : x - Step 2: Convert to fraction form
658,624.98/908,920.20 = 372,138.48/x - Step 3: Cross multiply
658,624.98x = 908,920.20 × 372,138.48 - Step 4: Simplify right side
658,624.98x = 338,244,181,669.30 - Step 5: Solve for x
x = 338,244,181,669.30/658,624.98 - Step 6: Final answer
x = 513,561.12
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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.