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Finding the Fourth Proportional to 592.62, 887.31 and 490.20

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Solution

The fourth proportional to 592.62, 887.31 and 490.20 is: 733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.62 : 887.31 = 490.20 : x
  2. Step 2: Convert to fraction form
    592.62/887.31 = 490.20/x
  3. Step 3: Cross multiply
    592.62x = 887.31 × 490.20
  4. Step 4: Simplify right side
    592.62x = 434,959.36
  5. Step 5: Solve for x
    x = 434,959.36/592.62
  6. Step 6: Final answer
    x = 733.96

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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.