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Finding the Fourth Proportional to 655.39, 981.45 and 593.87

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Solution

The fourth proportional to 655.39, 981.45 and 593.87 is: 889.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.39 : 981.45 = 593.87 : x
  2. Step 2: Convert to fraction form
    655.39/981.45 = 593.87/x
  3. Step 3: Cross multiply
    655.39x = 981.45 × 593.87
  4. Step 4: Simplify right side
    655.39x = 582,848.80
  5. Step 5: Solve for x
    x = 582,848.80/655.39
  6. Step 6: Final answer
    x = 889.31

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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.