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Finding the Third Proportional to 621.28 and 962.44

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Solution

The third proportional to 621.28 and 962.44 is: 1,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.28 : 962.44 = 962.44 : x
  2. Step 2: Convert to fraction form
    621.28/962.44 = 962.44/x
  3. Step 3: Cross multiply
    621.28x = 962.44 × 962.44
  4. Step 4: Simplify right side
    621.28x = 926,285.94
  5. Step 5: Solve for x
    x = 926,285.94/621.28
  6. Step 6: Final answer
    x = 1,490.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.