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Finding the Third Proportional to 903,911.25 and 1,398,999

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Solution

The third proportional to 903,911.25 and 1,398,999 is: 2,165,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,911.25 : 1,398,999 = 1,398,999 : x
  2. Step 2: Convert to fraction form
    903,911.25/1,398,999 = 1,398,999/x
  3. Step 3: Cross multiply
    903,911.25x = 1,398,999 × 1,398,999
  4. Step 4: Simplify right side
    903,911.25x = 1,957,198,202,001
  5. Step 5: Solve for x
    x = 1,957,198,202,001/903,911.25
  6. Step 6: Final answer
    x = 2,165,254.83

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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.