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Finding the Third Proportional to 453.13 and 679.88

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Solution

The third proportional to 453.13 and 679.88 is: 1,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.13 : 679.88 = 679.88 : x
  2. Step 2: Convert to fraction form
    453.13/679.88 = 679.88/x
  3. Step 3: Cross multiply
    453.13x = 679.88 × 679.88
  4. Step 4: Simplify right side
    453.13x = 462,230.02
  5. Step 5: Solve for x
    x = 462,230.02/453.13
  6. Step 6: Final answer
    x = 1,020.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.