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Finding the Fourth Proportional to 599.61, 827.31 and 488.91

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Solution

The fourth proportional to 599.61, 827.31 and 488.91 is: 674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.61 : 827.31 = 488.91 : x
  2. Step 2: Convert to fraction form
    599.61/827.31 = 488.91/x
  3. Step 3: Cross multiply
    599.61x = 827.31 × 488.91
  4. Step 4: Simplify right side
    599.61x = 404,480.13
  5. Step 5: Solve for x
    x = 404,480.13/599.61
  6. Step 6: Final answer
    x = 674.57

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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.