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Finding the Third Proportional to 373,869 and 815,406.75

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Solution

The third proportional to 373,869 and 815,406.75 is: 1,778,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,869 : 815,406.75 = 815,406.75 : x
  2. Step 2: Convert to fraction form
    373,869/815,406.75 = 815,406.75/x
  3. Step 3: Cross multiply
    373,869x = 815,406.75 × 815,406.75
  4. Step 4: Simplify right side
    373,869x = 664,888,167,945.56
  5. Step 5: Solve for x
    x = 664,888,167,945.56/373,869
  6. Step 6: Final answer
    x = 1,778,398.77

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.