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Finding the Third Proportional to 800,220 and 1,238,671

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Solution

The third proportional to 800,220 and 1,238,671 is: 1,917,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,220 : 1,238,671 = 1,238,671 : x
  2. Step 2: Convert to fraction form
    800,220/1,238,671 = 1,238,671/x
  3. Step 3: Cross multiply
    800,220x = 1,238,671 × 1,238,671
  4. Step 4: Simplify right side
    800,220x = 1,534,305,846,241
  5. Step 5: Solve for x
    x = 1,534,305,846,241/800,220
  6. Step 6: Final answer
    x = 1,917,355.04

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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.