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Finding the Third Proportional to 1,378,687.50 and 2,021,679

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Solution

The third proportional to 1,378,687.50 and 2,021,679 is: 2,964,548.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,687.50 : 2,021,679 = 2,021,679 : x
  2. Step 2: Convert to fraction form
    1,378,687.50/2,021,679 = 2,021,679/x
  3. Step 3: Cross multiply
    1,378,687.50x = 2,021,679 × 2,021,679
  4. Step 4: Simplify right side
    1,378,687.50x = 4,087,185,979,041
  5. Step 5: Solve for x
    x = 4,087,185,979,041/1,378,687.50
  6. Step 6: Final answer
    x = 2,964,548.51

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.