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Finding the Fourth Proportional to 529.82, 793.79 and 324.29

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Solution

The fourth proportional to 529.82, 793.79 and 324.29 is: 485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.82 : 793.79 = 324.29 : x
  2. Step 2: Convert to fraction form
    529.82/793.79 = 324.29/x
  3. Step 3: Cross multiply
    529.82x = 793.79 × 324.29
  4. Step 4: Simplify right side
    529.82x = 257,412.57
  5. Step 5: Solve for x
    x = 257,412.57/529.82
  6. Step 6: Final answer
    x = 485.85

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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.