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Finding the Fourth Proportional to 522,260.88, 782,341.56 and 272,418

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Solution

The fourth proportional to 522,260.88, 782,341.56 and 272,418 is: 408,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,260.88 : 782,341.56 = 272,418 : x
  2. Step 2: Convert to fraction form
    522,260.88/782,341.56 = 272,418/x
  3. Step 3: Cross multiply
    522,260.88x = 782,341.56 × 272,418
  4. Step 4: Simplify right side
    522,260.88x = 213,123,923,092.08
  5. Step 5: Solve for x
    x = 213,123,923,092.08/522,260.88
  6. Step 6: Final answer
    x = 408,079.43

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1.5x scale

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.