Home / 423,839.17-635,791.31-120,228.13

Finding the Fourth Proportional to 423,839.17, 635,791.31 and 120,228.13

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Solution

The fourth proportional to 423,839.17, 635,791.31 and 120,228.13 is: 180,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,839.17 : 635,791.31 = 120,228.13 : x
  2. Step 2: Convert to fraction form
    423,839.17/635,791.31 = 120,228.13/x
  3. Step 3: Cross multiply
    423,839.17x = 635,791.31 × 120,228.13
  4. Step 4: Simplify right side
    423,839.17x = 76,439,996,491.45
  5. Step 5: Solve for x
    x = 76,439,996,491.45/423,839.17
  6. Step 6: Final answer
    x = 180,351.42

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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.