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Finding the Fourth Proportional to 888,750, 1,226,475 and 486,342

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Solution

The fourth proportional to 888,750, 1,226,475 and 486,342 is: 671,151.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,750 : 1,226,475 = 486,342 : x
  2. Step 2: Convert to fraction form
    888,750/1,226,475 = 486,342/x
  3. Step 3: Cross multiply
    888,750x = 1,226,475 × 486,342
  4. Step 4: Simplify right side
    888,750x = 596,486,304,450
  5. Step 5: Solve for x
    x = 596,486,304,450/888,750
  6. Step 6: Final answer
    x = 671,151.96

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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.