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Finding the Third Proportional to 401,728 and 873,360

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Solution

The third proportional to 401,728 and 873,360 is: 1,898,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,728 : 873,360 = 873,360 : x
  2. Step 2: Convert to fraction form
    401,728/873,360 = 873,360/x
  3. Step 3: Cross multiply
    401,728x = 873,360 × 873,360
  4. Step 4: Simplify right side
    401,728x = 762,757,689,600
  5. Step 5: Solve for x
    x = 762,757,689,600/401,728
  6. Step 6: Final answer
    x = 1,898,691.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.