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Finding the Fourth Proportional to 399,687.32, 598,456.65 and 304,463.88

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Solution

The fourth proportional to 399,687.32, 598,456.65 and 304,463.88 is: 455,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,687.32 : 598,456.65 = 304,463.88 : x
  2. Step 2: Convert to fraction form
    399,687.32/598,456.65 = 304,463.88/x
  3. Step 3: Cross multiply
    399,687.32x = 598,456.65 × 304,463.88
  4. Step 4: Simplify right side
    399,687.32x = 182,208,429,156.20
  5. Step 5: Solve for x
    x = 182,208,429,156.20/399,687.32
  6. Step 6: Final answer
    x = 455,877.43

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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.