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Finding the Third Proportional to 618,439 and 1,330,368

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Solution

The third proportional to 618,439 and 1,330,368 is: 2,861,848.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,439 : 1,330,368 = 1,330,368 : x
  2. Step 2: Convert to fraction form
    618,439/1,330,368 = 1,330,368/x
  3. Step 3: Cross multiply
    618,439x = 1,330,368 × 1,330,368
  4. Step 4: Simplify right side
    618,439x = 1,769,879,015,424
  5. Step 5: Solve for x
    x = 1,769,879,015,424/618,439
  6. Step 6: Final answer
    x = 2,861,848.97

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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.