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Finding the Third Proportional to 376,728 and 527,988

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Solution

The third proportional to 376,728 and 527,988 is: 739,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,728 : 527,988 = 527,988 : x
  2. Step 2: Convert to fraction form
    376,728/527,988 = 527,988/x
  3. Step 3: Cross multiply
    376,728x = 527,988 × 527,988
  4. Step 4: Simplify right side
    376,728x = 278,771,328,144
  5. Step 5: Solve for x
    x = 278,771,328,144/376,728
  6. Step 6: Final answer
    x = 739,980.38

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.