Home / 418,635.60-577,732.33-239,822.16

Finding the Fourth Proportional to 418,635.60, 577,732.33 and 239,822.16

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Solution

The fourth proportional to 418,635.60, 577,732.33 and 239,822.16 is: 330,963.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,635.60 : 577,732.33 = 239,822.16 : x
  2. Step 2: Convert to fraction form
    418,635.60/577,732.33 = 239,822.16/x
  3. Step 3: Cross multiply
    418,635.60x = 577,732.33 × 239,822.16
  4. Step 4: Simplify right side
    418,635.60x = 138,553,015,282.43
  5. Step 5: Solve for x
    x = 138,553,015,282.43/418,635.60
  6. Step 6: Final answer
    x = 330,963.29

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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.