Finding the Fourth Proportional to 747,793.68, 1,031,949.88 and 408,261.92
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Solution
The fourth proportional to 747,793.68, 1,031,949.88 and 408,261.92 is: 563,398.50
Step by Step Solution
- Step 1: Write the proportion equation
747,793.68 : 1,031,949.88 = 408,261.92 : x - Step 2: Convert to fraction form
747,793.68/1,031,949.88 = 408,261.92/x - Step 3: Cross multiply
747,793.68x = 1,031,949.88 × 408,261.92 - Step 4: Simplify right side
747,793.68x = 421,305,839,352.57 - Step 5: Solve for x
x = 421,305,839,352.57/747,793.68 - Step 6: Final answer
x = 563,398.50
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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.