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Finding the Fourth Proportional to 593.46, 819.09 and 439.38

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Solution

The fourth proportional to 593.46, 819.09 and 439.38 is: 606.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.46 : 819.09 = 439.38 : x
  2. Step 2: Convert to fraction form
    593.46/819.09 = 439.38/x
  3. Step 3: Cross multiply
    593.46x = 819.09 × 439.38
  4. Step 4: Simplify right side
    593.46x = 359,891.76
  5. Step 5: Solve for x
    x = 359,891.76/593.46
  6. Step 6: Final answer
    x = 606.43

Related Problems

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Double scale
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Similar ratio
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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.