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Finding the Third Proportional to 618,441 and 1,330,372

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Solution

The third proportional to 618,441 and 1,330,372 is: 2,861,856.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,441 : 1,330,372 = 1,330,372 : x
  2. Step 2: Convert to fraction form
    618,441/1,330,372 = 1,330,372/x
  3. Step 3: Cross multiply
    618,441x = 1,330,372 × 1,330,372
  4. Step 4: Simplify right side
    618,441x = 1,769,889,658,384
  5. Step 5: Solve for x
    x = 1,769,889,658,384/618,441
  6. Step 6: Final answer
    x = 2,861,856.92

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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.