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Finding the Third Proportional to 376,077 and 555,815

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Solution

The third proportional to 376,077 and 555,815 is: 821,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,077 : 555,815 = 555,815 : x
  2. Step 2: Convert to fraction form
    376,077/555,815 = 555,815/x
  3. Step 3: Cross multiply
    376,077x = 555,815 × 555,815
  4. Step 4: Simplify right side
    376,077x = 308,930,314,225
  5. Step 5: Solve for x
    x = 308,930,314,225/376,077
  6. Step 6: Final answer
    x = 821,454.95

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.