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Finding the Fourth Proportional to 578,446.88, 866,540.28 and 398,500.52

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Solution

The fourth proportional to 578,446.88, 866,540.28 and 398,500.52 is: 596,972.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,446.88 : 866,540.28 = 398,500.52 : x
  2. Step 2: Convert to fraction form
    578,446.88/866,540.28 = 398,500.52/x
  3. Step 3: Cross multiply
    578,446.88x = 866,540.28 × 398,500.52
  4. Step 4: Simplify right side
    578,446.88x = 345,316,752,180.95
  5. Step 5: Solve for x
    x = 345,316,752,180.95/578,446.88
  6. Step 6: Final answer
    x = 596,972.28

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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.