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Finding the Third Proportional to 332,112 and 687,855

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Solution

The third proportional to 332,112 and 687,855 is: 1,424,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,112 : 687,855 = 687,855 : x
  2. Step 2: Convert to fraction form
    332,112/687,855 = 687,855/x
  3. Step 3: Cross multiply
    332,112x = 687,855 × 687,855
  4. Step 4: Simplify right side
    332,112x = 473,144,501,025
  5. Step 5: Solve for x
    x = 473,144,501,025/332,112
  6. Step 6: Final answer
    x = 1,424,653.43

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.