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Finding the Fourth Proportional to 834.48, 1,150.92 and 667.44

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Solution

The fourth proportional to 834.48, 1,150.92 and 667.44 is: 920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.48 : 1,150.92 = 667.44 : x
  2. Step 2: Convert to fraction form
    834.48/1,150.92 = 667.44/x
  3. Step 3: Cross multiply
    834.48x = 1,150.92 × 667.44
  4. Step 4: Simplify right side
    834.48x = 768,170.04
  5. Step 5: Solve for x
    x = 768,170.04/834.48
  6. Step 6: Final answer
    x = 920.54

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Double scale
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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.