Home / 472,617.38-709,031.44-135,631.76

Finding the Fourth Proportional to 472,617.38, 709,031.44 and 135,631.76

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Solution

The fourth proportional to 472,617.38, 709,031.44 and 135,631.76 is: 203,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,617.38 : 709,031.44 = 135,631.76 : x
  2. Step 2: Convert to fraction form
    472,617.38/709,031.44 = 135,631.76/x
  3. Step 3: Cross multiply
    472,617.38x = 709,031.44 × 135,631.76
  4. Step 4: Simplify right side
    472,617.38x = 96,167,182,102.53
  5. Step 5: Solve for x
    x = 96,167,182,102.53/472,617.38
  6. Step 6: Final answer
    x = 203,477.88

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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.