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Finding the Third Proportional to 1,247,040 and 2,679,408

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Solution

The third proportional to 1,247,040 and 2,679,408 is: 5,757,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,040 : 2,679,408 = 2,679,408 : x
  2. Step 2: Convert to fraction form
    1,247,040/2,679,408 = 2,679,408/x
  3. Step 3: Cross multiply
    1,247,040x = 2,679,408 × 2,679,408
  4. Step 4: Simplify right side
    1,247,040x = 7,179,227,230,464
  5. Step 5: Solve for x
    x = 7,179,227,230,464/1,247,040
  6. Step 6: Final answer
    x = 5,757,014.39

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.