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Finding the Fourth Proportional to 672.26, 927.90 and 462.26

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Solution

The fourth proportional to 672.26, 927.90 and 462.26 is: 638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.26 : 927.90 = 462.26 : x
  2. Step 2: Convert to fraction form
    672.26/927.90 = 462.26/x
  3. Step 3: Cross multiply
    672.26x = 927.90 × 462.26
  4. Step 4: Simplify right side
    672.26x = 428,931.05
  5. Step 5: Solve for x
    x = 428,931.05/672.26
  6. Step 6: Final answer
    x = 638.04

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Half scale
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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.