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Finding the Fourth Proportional to 600.30, 827.73 and 489.43

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Solution

The fourth proportional to 600.30, 827.73 and 489.43 is: 674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.30 : 827.73 = 489.43 : x
  2. Step 2: Convert to fraction form
    600.30/827.73 = 489.43/x
  3. Step 3: Cross multiply
    600.30x = 827.73 × 489.43
  4. Step 4: Simplify right side
    600.30x = 405,115.89
  5. Step 5: Solve for x
    x = 405,115.89/600.30
  6. Step 6: Final answer
    x = 674.86

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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.