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Finding the Third Proportional to 454.78 and 966.36

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Solution

The third proportional to 454.78 and 966.36 is: 2,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.78 : 966.36 = 966.36 : x
  2. Step 2: Convert to fraction form
    454.78/966.36 = 966.36/x
  3. Step 3: Cross multiply
    454.78x = 966.36 × 966.36
  4. Step 4: Simplify right side
    454.78x = 933,846.67
  5. Step 5: Solve for x
    x = 933,846.67/454.78
  6. Step 6: Final answer
    x = 2,053.40

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.