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Finding the Fourth Proportional to 593.55, 890.66 and 388.11

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Solution

The fourth proportional to 593.55, 890.66 and 388.11 is: 582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.55 : 890.66 = 388.11 : x
  2. Step 2: Convert to fraction form
    593.55/890.66 = 388.11/x
  3. Step 3: Cross multiply
    593.55x = 890.66 × 388.11
  4. Step 4: Simplify right side
    593.55x = 345,675.02
  5. Step 5: Solve for x
    x = 345,675.02/593.55
  6. Step 6: Final answer
    x = 582.39

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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.