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Finding the Third Proportional to 1,389,645 and 3,011,249.25

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Solution

The third proportional to 1,389,645 and 3,011,249.25 is: 6,525,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,645 : 3,011,249.25 = 3,011,249.25 : x
  2. Step 2: Convert to fraction form
    1,389,645/3,011,249.25 = 3,011,249.25/x
  3. Step 3: Cross multiply
    1,389,645x = 3,011,249.25 × 3,011,249.25
  4. Step 4: Simplify right side
    1,389,645x = 9,067,622,045,625.56
  5. Step 5: Solve for x
    x = 9,067,622,045,625.56/1,389,645
  6. Step 6: Final answer
    x = 6,525,135.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.