Finding the Fourth Proportional to 747,740.14, 1,031,876.14 and 408,208.38
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Solution
The fourth proportional to 747,740.14, 1,031,876.14 and 408,208.38 is: 563,324.70
Step by Step Solution
- Step 1: Write the proportion equation
747,740.14 : 1,031,876.14 = 408,208.38 : x - Step 2: Convert to fraction form
747,740.14/1,031,876.14 = 408,208.38/x - Step 3: Cross multiply
747,740.14x = 1,031,876.14 × 408,208.38 - Step 4: Simplify right side
747,740.14x = 421,220,487,470.05 - Step 5: Solve for x
x = 421,220,487,470.05/747,740.14 - Step 6: Final answer
x = 563,324.70
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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.