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Finding the Fourth Proportional to 834.27, 1,151.25 and 461.23

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Solution

The fourth proportional to 834.27, 1,151.25 and 461.23 is: 636.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.27 : 1,151.25 = 461.23 : x
  2. Step 2: Convert to fraction form
    834.27/1,151.25 = 461.23/x
  3. Step 3: Cross multiply
    834.27x = 1,151.25 × 461.23
  4. Step 4: Simplify right side
    834.27x = 530,991.40
  5. Step 5: Solve for x
    x = 530,991.40/834.27
  6. Step 6: Final answer
    x = 636.47

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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.