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Finding the Fourth Proportional to 884.60, 1,326.72 and 397.52

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Solution

The fourth proportional to 884.60, 1,326.72 and 397.52 is: 596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.60 : 1,326.72 = 397.52 : x
  2. Step 2: Convert to fraction form
    884.60/1,326.72 = 397.52/x
  3. Step 3: Cross multiply
    884.60x = 1,326.72 × 397.52
  4. Step 4: Simplify right side
    884.60x = 527,397.73
  5. Step 5: Solve for x
    x = 527,397.73/884.60
  6. Step 6: Final answer
    x = 596.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.