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Finding the Fourth Proportional to 599.30, 827.42 and 489.04

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Solution

The fourth proportional to 599.30, 827.42 and 489.04 is: 675.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.30 : 827.42 = 489.04 : x
  2. Step 2: Convert to fraction form
    599.30/827.42 = 489.04/x
  3. Step 3: Cross multiply
    599.30x = 827.42 × 489.04
  4. Step 4: Simplify right side
    599.30x = 404,636.96
  5. Step 5: Solve for x
    x = 404,636.96/599.30
  6. Step 6: Final answer
    x = 675.18

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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.