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Finding the Fourth Proportional to 959.22, 1,437.39 and 633.42

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Solution

The fourth proportional to 959.22, 1,437.39 and 633.42 is: 949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.22 : 1,437.39 = 633.42 : x
  2. Step 2: Convert to fraction form
    959.22/1,437.39 = 633.42/x
  3. Step 3: Cross multiply
    959.22x = 1,437.39 × 633.42
  4. Step 4: Simplify right side
    959.22x = 910,471.57
  5. Step 5: Solve for x
    x = 910,471.57/959.22
  6. Step 6: Final answer
    x = 949.18

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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.