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Finding the Fourth Proportional to 418,488.53, 577,519.88 and 227,505.92

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Solution

The fourth proportional to 418,488.53, 577,519.88 and 227,505.92 is: 313,961.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,488.53 : 577,519.88 = 227,505.92 : x
  2. Step 2: Convert to fraction form
    418,488.53/577,519.88 = 227,505.92/x
  3. Step 3: Cross multiply
    418,488.53x = 577,519.88 × 227,505.92
  4. Step 4: Simplify right side
    418,488.53x = 131,389,187,592.56
  5. Step 5: Solve for x
    x = 131,389,187,592.56/418,488.53
  6. Step 6: Final answer
    x = 313,961.27

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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.