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Finding the Third Proportional to 376,872 and 528,180

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Solution

The third proportional to 376,872 and 528,180 is: 740,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,872 : 528,180 = 528,180 : x
  2. Step 2: Convert to fraction form
    376,872/528,180 = 528,180/x
  3. Step 3: Cross multiply
    376,872x = 528,180 × 528,180
  4. Step 4: Simplify right side
    376,872x = 278,974,112,400
  5. Step 5: Solve for x
    x = 278,974,112,400/376,872
  6. Step 6: Final answer
    x = 740,235.71

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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.