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Finding the Fourth Proportional to 959.50, 1,324.20 and 610.12

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Solution

The fourth proportional to 959.50, 1,324.20 and 610.12 is: 842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.50 : 1,324.20 = 610.12 : x
  2. Step 2: Convert to fraction form
    959.50/1,324.20 = 610.12/x
  3. Step 3: Cross multiply
    959.50x = 1,324.20 × 610.12
  4. Step 4: Simplify right side
    959.50x = 807,920.90
  5. Step 5: Solve for x
    x = 807,920.90/959.50
  6. Step 6: Final answer
    x = 842.02

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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.