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Finding the Fourth Proportional to 534.67, 798.92 and 408.89

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Solution

The fourth proportional to 534.67, 798.92 and 408.89 is: 610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.67 : 798.92 = 408.89 : x
  2. Step 2: Convert to fraction form
    534.67/798.92 = 408.89/x
  3. Step 3: Cross multiply
    534.67x = 798.92 × 408.89
  4. Step 4: Simplify right side
    534.67x = 326,670.35
  5. Step 5: Solve for x
    x = 326,670.35/534.67
  6. Step 6: Final answer
    x = 610.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.