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Finding the Fourth Proportional to 562.64, 844.56 and 447.82

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Solution

The fourth proportional to 562.64, 844.56 and 447.82 is: 672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.64 : 844.56 = 447.82 : x
  2. Step 2: Convert to fraction form
    562.64/844.56 = 447.82/x
  3. Step 3: Cross multiply
    562.64x = 844.56 × 447.82
  4. Step 4: Simplify right side
    562.64x = 378,208.75
  5. Step 5: Solve for x
    x = 378,208.75/562.64
  6. Step 6: Final answer
    x = 672.21

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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.