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Finding the Fourth Proportional to 593.66, 890.95 and 388.18

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Solution

The fourth proportional to 593.66, 890.95 and 388.18 is: 582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.66 : 890.95 = 388.18 : x
  2. Step 2: Convert to fraction form
    593.66/890.95 = 388.18/x
  3. Step 3: Cross multiply
    593.66x = 890.95 × 388.18
  4. Step 4: Simplify right side
    593.66x = 345,845.77
  5. Step 5: Solve for x
    x = 345,845.77/593.66
  6. Step 6: Final answer
    x = 582.56

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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.