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Finding the Fourth Proportional to 593.22, 817.85 and 487.82

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Solution

The fourth proportional to 593.22, 817.85 and 487.82 is: 672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.22 : 817.85 = 487.82 : x
  2. Step 2: Convert to fraction form
    593.22/817.85 = 487.82/x
  3. Step 3: Cross multiply
    593.22x = 817.85 × 487.82
  4. Step 4: Simplify right side
    593.22x = 398,964.11
  5. Step 5: Solve for x
    x = 398,964.11/593.22
  6. Step 6: Final answer
    x = 672.54

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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.