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Finding the Third Proportional to 322,472 and 683,360

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Solution

The third proportional to 322,472 and 683,360 is: 1,448,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,472 : 683,360 = 683,360 : x
  2. Step 2: Convert to fraction form
    322,472/683,360 = 683,360/x
  3. Step 3: Cross multiply
    322,472x = 683,360 × 683,360
  4. Step 4: Simplify right side
    322,472x = 466,980,889,600
  5. Step 5: Solve for x
    x = 466,980,889,600/322,472
  6. Step 6: Final answer
    x = 1,448,128.49

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.