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Finding the Third Proportional to 382,728 and 547,848

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Solution

The third proportional to 382,728 and 547,848 is: 784,205.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,728 : 547,848 = 547,848 : x
  2. Step 2: Convert to fraction form
    382,728/547,848 = 547,848/x
  3. Step 3: Cross multiply
    382,728x = 547,848 × 547,848
  4. Step 4: Simplify right side
    382,728x = 300,137,431,104
  5. Step 5: Solve for x
    x = 300,137,431,104/382,728
  6. Step 6: Final answer
    x = 784,205.57

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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.