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Finding the Fourth Proportional to 452,645.82, 679,116.24 and 215,957.88

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Solution

The fourth proportional to 452,645.82, 679,116.24 and 215,957.88 is: 324,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,645.82 : 679,116.24 = 215,957.88 : x
  2. Step 2: Convert to fraction form
    452,645.82/679,116.24 = 215,957.88/x
  3. Step 3: Cross multiply
    452,645.82x = 679,116.24 × 215,957.88
  4. Step 4: Simplify right side
    452,645.82x = 146,660,503,463.97
  5. Step 5: Solve for x
    x = 146,660,503,463.97/452,645.82
  6. Step 6: Final answer
    x = 324,007.20

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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.