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Finding the Fourth Proportional to 592.90, 817.89 and 396.52

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Solution

The fourth proportional to 592.90, 817.89 and 396.52 is: 546.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.90 : 817.89 = 396.52 : x
  2. Step 2: Convert to fraction form
    592.90/817.89 = 396.52/x
  3. Step 3: Cross multiply
    592.90x = 817.89 × 396.52
  4. Step 4: Simplify right side
    592.90x = 324,309.74
  5. Step 5: Solve for x
    x = 324,309.74/592.90
  6. Step 6: Final answer
    x = 546.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.