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Finding the Fourth Proportional to 593.87, 890.39 and 320.09

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Solution

The fourth proportional to 593.87, 890.39 and 320.09 is: 479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.87 : 890.39 = 320.09 : x
  2. Step 2: Convert to fraction form
    593.87/890.39 = 320.09/x
  3. Step 3: Cross multiply
    593.87x = 890.39 × 320.09
  4. Step 4: Simplify right side
    593.87x = 285,001.28
  5. Step 5: Solve for x
    x = 285,001.28/593.87
  6. Step 6: Final answer
    x = 479.91

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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.