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Finding the Third Proportional to 1,278,401.88 and 2,759,605.29

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Solution

The third proportional to 1,278,401.88 and 2,759,605.29 is: 5,956,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,401.88 : 2,759,605.29 = 2,759,605.29 : x
  2. Step 2: Convert to fraction form
    1,278,401.88/2,759,605.29 = 2,759,605.29/x
  3. Step 3: Cross multiply
    1,278,401.88x = 2,759,605.29 × 2,759,605.29
  4. Step 4: Simplify right side
    1,278,401.88x = 7,615,421,383,760.44
  5. Step 5: Solve for x
    x = 7,615,421,383,760.44/1,278,401.88
  6. Step 6: Final answer
    x = 5,956,985.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.