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Finding the Third Proportional to 611,854 and 1,312,278

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Solution

The third proportional to 611,854 and 1,312,278 is: 2,814,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,854 : 1,312,278 = 1,312,278 : x
  2. Step 2: Convert to fraction form
    611,854/1,312,278 = 1,312,278/x
  3. Step 3: Cross multiply
    611,854x = 1,312,278 × 1,312,278
  4. Step 4: Simplify right side
    611,854x = 1,722,073,549,284
  5. Step 5: Solve for x
    x = 1,722,073,549,284/611,854
  6. Step 6: Final answer
    x = 2,814,517.11

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.