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Finding the Third Proportional to 868,632 and 1,328,780.25

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Solution

The third proportional to 868,632 and 1,328,780.25 is: 2,032,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,632 : 1,328,780.25 = 1,328,780.25 : x
  2. Step 2: Convert to fraction form
    868,632/1,328,780.25 = 1,328,780.25/x
  3. Step 3: Cross multiply
    868,632x = 1,328,780.25 × 1,328,780.25
  4. Step 4: Simplify right side
    868,632x = 1,765,656,952,790.06
  5. Step 5: Solve for x
    x = 1,765,656,952,790.06/868,632
  6. Step 6: Final answer
    x = 2,032,686.98

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.