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Finding the Third Proportional to 457,291.69 and 679,304.39

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Solution

The third proportional to 457,291.69 and 679,304.39 is: 1,009,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,291.69 : 679,304.39 = 679,304.39 : x
  2. Step 2: Convert to fraction form
    457,291.69/679,304.39 = 679,304.39/x
  3. Step 3: Cross multiply
    457,291.69x = 679,304.39 × 679,304.39
  4. Step 4: Simplify right side
    457,291.69x = 461,454,455,122.40
  5. Step 5: Solve for x
    x = 461,454,455,122.40/457,291.69
  6. Step 6: Final answer
    x = 1,009,103.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.