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Finding the Third Proportional to 424.30 and 884.20

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Solution

The third proportional to 424.30 and 884.20 is: 1,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.30 : 884.20 = 884.20 : x
  2. Step 2: Convert to fraction form
    424.30/884.20 = 884.20/x
  3. Step 3: Cross multiply
    424.30x = 884.20 × 884.20
  4. Step 4: Simplify right side
    424.30x = 781,804.80
  5. Step 5: Solve for x
    x = 781,804.80/424.30
  6. Step 6: Final answer
    x = 1,842.57

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.