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Finding the Third Proportional to 618,709 and 1,356,974

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Solution

The third proportional to 618,709 and 1,356,974 is: 2,976,162.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,709 : 1,356,974 = 1,356,974 : x
  2. Step 2: Convert to fraction form
    618,709/1,356,974 = 1,356,974/x
  3. Step 3: Cross multiply
    618,709x = 1,356,974 × 1,356,974
  4. Step 4: Simplify right side
    618,709x = 1,841,378,436,676
  5. Step 5: Solve for x
    x = 1,841,378,436,676/618,709
  6. Step 6: Final answer
    x = 2,976,162.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.