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Finding the Third Proportional to 1,215,690 and 2,645,434.50

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Solution

The third proportional to 1,215,690 and 2,645,434.50 is: 5,756,667.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,690 : 2,645,434.50 = 2,645,434.50 : x
  2. Step 2: Convert to fraction form
    1,215,690/2,645,434.50 = 2,645,434.50/x
  3. Step 3: Cross multiply
    1,215,690x = 2,645,434.50 × 2,645,434.50
  4. Step 4: Simplify right side
    1,215,690x = 6,998,323,693,790.25
  5. Step 5: Solve for x
    x = 6,998,323,693,790.25/1,215,690
  6. Step 6: Final answer
    x = 5,756,667.98

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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.