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Finding the Third Proportional to 501,831 and 715,378

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Solution

The third proportional to 501,831 and 715,378 is: 1,019,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,831 : 715,378 = 715,378 : x
  2. Step 2: Convert to fraction form
    501,831/715,378 = 715,378/x
  3. Step 3: Cross multiply
    501,831x = 715,378 × 715,378
  4. Step 4: Simplify right side
    501,831x = 511,765,682,884
  5. Step 5: Solve for x
    x = 511,765,682,884/501,831
  6. Step 6: Final answer
    x = 1,019,796.87

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.