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Finding the Third Proportional to 407,899 and 874,845

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Solution

The third proportional to 407,899 and 874,845 is: 1,876,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,899 : 874,845 = 874,845 : x
  2. Step 2: Convert to fraction form
    407,899/874,845 = 874,845/x
  3. Step 3: Cross multiply
    407,899x = 874,845 × 874,845
  4. Step 4: Simplify right side
    407,899x = 765,353,774,025
  5. Step 5: Solve for x
    x = 765,353,774,025/407,899
  6. Step 6: Final answer
    x = 1,876,331.58

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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.