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Finding the Fourth Proportional to 593.80, 890.61 and 458.44

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Solution

The fourth proportional to 593.80, 890.61 and 458.44 is: 687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.80 : 890.61 = 458.44 : x
  2. Step 2: Convert to fraction form
    593.80/890.61 = 458.44/x
  3. Step 3: Cross multiply
    593.80x = 890.61 × 458.44
  4. Step 4: Simplify right side
    593.80x = 408,291.25
  5. Step 5: Solve for x
    x = 408,291.25/593.80
  6. Step 6: Final answer
    x = 687.59

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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.