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Finding the Third Proportional to 858,425.20 and 1,328,587.17

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Solution

The third proportional to 858,425.20 and 1,328,587.17 is: 2,056,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,425.20 : 1,328,587.17 = 1,328,587.17 : x
  2. Step 2: Convert to fraction form
    858,425.20/1,328,587.17 = 1,328,587.17/x
  3. Step 3: Cross multiply
    858,425.20x = 1,328,587.17 × 1,328,587.17
  4. Step 4: Simplify right side
    858,425.20x = 1,765,143,873,270.81
  5. Step 5: Solve for x
    x = 1,765,143,873,270.81/858,425.20
  6. Step 6: Final answer
    x = 2,056,258.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.