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Finding the Fourth Proportional to 589.38, 813.42 and 327.48

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Solution

The fourth proportional to 589.38, 813.42 and 327.48 is: 451.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.38 : 813.42 = 327.48 : x
  2. Step 2: Convert to fraction form
    589.38/813.42 = 327.48/x
  3. Step 3: Cross multiply
    589.38x = 813.42 × 327.48
  4. Step 4: Simplify right side
    589.38x = 266,378.78
  5. Step 5: Solve for x
    x = 266,378.78/589.38
  6. Step 6: Final answer
    x = 451.96

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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.