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Finding the Third Proportional to 328,576 and 706,224

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Solution

The third proportional to 328,576 and 706,224 is: 1,517,920.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,576 : 706,224 = 706,224 : x
  2. Step 2: Convert to fraction form
    328,576/706,224 = 706,224/x
  3. Step 3: Cross multiply
    328,576x = 706,224 × 706,224
  4. Step 4: Simplify right side
    328,576x = 498,752,338,176
  5. Step 5: Solve for x
    x = 498,752,338,176/328,576
  6. Step 6: Final answer
    x = 1,517,920.78

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.