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Finding the Third Proportional to 555,867 and 1,212,102

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Solution

The third proportional to 555,867 and 1,212,102 is: 2,643,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,867 : 1,212,102 = 1,212,102 : x
  2. Step 2: Convert to fraction form
    555,867/1,212,102 = 1,212,102/x
  3. Step 3: Cross multiply
    555,867x = 1,212,102 × 1,212,102
  4. Step 4: Simplify right side
    555,867x = 1,469,191,258,404
  5. Step 5: Solve for x
    x = 1,469,191,258,404/555,867
  6. Step 6: Final answer
    x = 2,643,062.56

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.