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Finding the Fourth Proportional to 959.31, 1,323.45 and 566.19

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Solution

The fourth proportional to 959.31, 1,323.45 and 566.19 is: 781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.31 : 1,323.45 = 566.19 : x
  2. Step 2: Convert to fraction form
    959.31/1,323.45 = 566.19/x
  3. Step 3: Cross multiply
    959.31x = 1,323.45 × 566.19
  4. Step 4: Simplify right side
    959.31x = 749,324.16
  5. Step 5: Solve for x
    x = 749,324.16/959.31
  6. Step 6: Final answer
    x = 781.11

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1.5x scale

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.