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Finding the Fourth Proportional to 593.62, 890.54 and 478.80

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Solution

The fourth proportional to 593.62, 890.54 and 478.80 is: 718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.62 : 890.54 = 478.80 : x
  2. Step 2: Convert to fraction form
    593.62/890.54 = 478.80/x
  3. Step 3: Cross multiply
    593.62x = 890.54 × 478.80
  4. Step 4: Simplify right side
    593.62x = 426,390.55
  5. Step 5: Solve for x
    x = 426,390.55/593.62
  6. Step 6: Final answer
    x = 718.29

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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.