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Finding the Fourth Proportional to 883.38, 1,324.20 and 493.71

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Solution

The fourth proportional to 883.38, 1,324.20 and 493.71 is: 740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.38 : 1,324.20 = 493.71 : x
  2. Step 2: Convert to fraction form
    883.38/1,324.20 = 493.71/x
  3. Step 3: Cross multiply
    883.38x = 1,324.20 × 493.71
  4. Step 4: Simplify right side
    883.38x = 653,767.68
  5. Step 5: Solve for x
    x = 653,767.68/883.38
  6. Step 6: Final answer
    x = 740.08

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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.