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Finding the Third Proportional to 276,867 and 426,984.75

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Solution

The third proportional to 276,867 and 426,984.75 is: 658,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,867 : 426,984.75 = 426,984.75 : x
  2. Step 2: Convert to fraction form
    276,867/426,984.75 = 426,984.75/x
  3. Step 3: Cross multiply
    276,867x = 426,984.75 × 426,984.75
  4. Step 4: Simplify right side
    276,867x = 182,315,976,732.56
  5. Step 5: Solve for x
    x = 182,315,976,732.56/276,867
  6. Step 6: Final answer
    x = 658,496.59

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.