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Finding the Fourth Proportional to 747,375.75, 1,121,053.10 and 347,793.03

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Solution

The fourth proportional to 747,375.75, 1,121,053.10 and 347,793.03 is: 521,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,375.75 : 1,121,053.10 = 347,793.03 : x
  2. Step 2: Convert to fraction form
    747,375.75/1,121,053.10 = 347,793.03/x
  3. Step 3: Cross multiply
    747,375.75x = 1,121,053.10 × 347,793.03
  4. Step 4: Simplify right side
    747,375.75x = 389,894,452,700.93
  5. Step 5: Solve for x
    x = 389,894,452,700.93/747,375.75
  6. Step 6: Final answer
    x = 521,684.64

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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.