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Finding the Third Proportional to 454,768 and 636,120

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Solution

The third proportional to 454,768 and 636,120 is: 889,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,768 : 636,120 = 636,120 : x
  2. Step 2: Convert to fraction form
    454,768/636,120 = 636,120/x
  3. Step 3: Cross multiply
    454,768x = 636,120 × 636,120
  4. Step 4: Simplify right side
    454,768x = 404,648,654,400
  5. Step 5: Solve for x
    x = 404,648,654,400/454,768
  6. Step 6: Final answer
    x = 889,791.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.