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Finding the Third Proportional to 326,298 and 722,472

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Solution

The third proportional to 326,298 and 722,472 is: 1,599,659.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,298 : 722,472 = 722,472 : x
  2. Step 2: Convert to fraction form
    326,298/722,472 = 722,472/x
  3. Step 3: Cross multiply
    326,298x = 722,472 × 722,472
  4. Step 4: Simplify right side
    326,298x = 521,965,790,784
  5. Step 5: Solve for x
    x = 521,965,790,784/326,298
  6. Step 6: Final answer
    x = 1,599,659.79

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.