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Finding the Third Proportional to 407,898 and 874,843

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Solution

The third proportional to 407,898 and 874,843 is: 1,876,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,898 : 874,843 = 874,843 : x
  2. Step 2: Convert to fraction form
    407,898/874,843 = 874,843/x
  3. Step 3: Cross multiply
    407,898x = 874,843 × 874,843
  4. Step 4: Simplify right side
    407,898x = 765,350,274,649
  5. Step 5: Solve for x
    x = 765,350,274,649/407,898
  6. Step 6: Final answer
    x = 1,876,327.60

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.