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Finding the Third Proportional to 618,521 and 1,318,042

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Solution

The third proportional to 618,521 and 1,318,042 is: 2,808,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,521 : 1,318,042 = 1,318,042 : x
  2. Step 2: Convert to fraction form
    618,521/1,318,042 = 1,318,042/x
  3. Step 3: Cross multiply
    618,521x = 1,318,042 × 1,318,042
  4. Step 4: Simplify right side
    618,521x = 1,737,234,713,764
  5. Step 5: Solve for x
    x = 1,737,234,713,764/618,521
  6. Step 6: Final answer
    x = 2,808,691.56

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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.