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Finding the Third Proportional to 618,240 and 1,318,132

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Solution

The third proportional to 618,240 and 1,318,132 is: 2,810,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,240 : 1,318,132 = 1,318,132 : x
  2. Step 2: Convert to fraction form
    618,240/1,318,132 = 1,318,132/x
  3. Step 3: Cross multiply
    618,240x = 1,318,132 × 1,318,132
  4. Step 4: Simplify right side
    618,240x = 1,737,471,969,424
  5. Step 5: Solve for x
    x = 1,737,471,969,424/618,240
  6. Step 6: Final answer
    x = 2,810,351.92

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.