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Finding the Fourth Proportional to 959.31, 1,324.08 and 566.55

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Solution

The fourth proportional to 959.31, 1,324.08 and 566.55 is: 781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.31 : 1,324.08 = 566.55 : x
  2. Step 2: Convert to fraction form
    959.31/1,324.08 = 566.55/x
  3. Step 3: Cross multiply
    959.31x = 1,324.08 × 566.55
  4. Step 4: Simplify right side
    959.31x = 750,157.52
  5. Step 5: Solve for x
    x = 750,157.52/959.31
  6. Step 6: Final answer
    x = 781.98

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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.