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Finding the Fourth Proportional to 959.39, 1,323.49 and 566.18

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Solution

The fourth proportional to 959.39, 1,323.49 and 566.18 is: 781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.39 : 1,323.49 = 566.18 : x
  2. Step 2: Convert to fraction form
    959.39/1,323.49 = 566.18/x
  3. Step 3: Cross multiply
    959.39x = 1,323.49 × 566.18
  4. Step 4: Simplify right side
    959.39x = 749,335.46
  5. Step 5: Solve for x
    x = 749,335.46/959.39
  6. Step 6: Final answer
    x = 781.06

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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.