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Finding the Third Proportional to 891,370 and 1,380,817

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Solution

The third proportional to 891,370 and 1,380,817 is: 2,139,017.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,370 : 1,380,817 = 1,380,817 : x
  2. Step 2: Convert to fraction form
    891,370/1,380,817 = 1,380,817/x
  3. Step 3: Cross multiply
    891,370x = 1,380,817 × 1,380,817
  4. Step 4: Simplify right side
    891,370x = 1,906,655,587,489
  5. Step 5: Solve for x
    x = 1,906,655,587,489/891,370
  6. Step 6: Final answer
    x = 2,139,017.00

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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.