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Finding the Fourth Proportional to 884.18, 1,326.58 and 397.58

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Solution

The fourth proportional to 884.18, 1,326.58 and 397.58 is: 596.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.18 : 1,326.58 = 397.58 : x
  2. Step 2: Convert to fraction form
    884.18/1,326.58 = 397.58/x
  3. Step 3: Cross multiply
    884.18x = 1,326.58 × 397.58
  4. Step 4: Simplify right side
    884.18x = 527,414.05
  5. Step 5: Solve for x
    x = 527,414.05/884.18
  6. Step 6: Final answer
    x = 596.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.