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Finding the Fourth Proportional to 528.73, 792.89 and 323.39

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Solution

The fourth proportional to 528.73, 792.89 and 323.39 is: 484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.73 : 792.89 = 323.39 : x
  2. Step 2: Convert to fraction form
    528.73/792.89 = 323.39/x
  3. Step 3: Cross multiply
    528.73x = 792.89 × 323.39
  4. Step 4: Simplify right side
    528.73x = 256,414.28
  5. Step 5: Solve for x
    x = 256,414.28/528.73
  6. Step 6: Final answer
    x = 484.96

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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.