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Finding the Fourth Proportional to 671.27, 926.19 and 432.09

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Solution

The fourth proportional to 671.27, 926.19 and 432.09 is: 596.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.27 : 926.19 = 432.09 : x
  2. Step 2: Convert to fraction form
    671.27/926.19 = 432.09/x
  3. Step 3: Cross multiply
    671.27x = 926.19 × 432.09
  4. Step 4: Simplify right side
    671.27x = 400,197.44
  5. Step 5: Solve for x
    x = 400,197.44/671.27
  6. Step 6: Final answer
    x = 596.18

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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.