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Finding the Third Proportional to 861,146 and 1,281,879

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Solution

The third proportional to 861,146 and 1,281,879 is: 1,908,170.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,146 : 1,281,879 = 1,281,879 : x
  2. Step 2: Convert to fraction form
    861,146/1,281,879 = 1,281,879/x
  3. Step 3: Cross multiply
    861,146x = 1,281,879 × 1,281,879
  4. Step 4: Simplify right side
    861,146x = 1,643,213,770,641
  5. Step 5: Solve for x
    x = 1,643,213,770,641/861,146
  6. Step 6: Final answer
    x = 1,908,170.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.