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Finding the Third Proportional to 310,758 and 479,873.25

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Solution

The third proportional to 310,758 and 479,873.25 is: 741,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,758 : 479,873.25 = 479,873.25 : x
  2. Step 2: Convert to fraction form
    310,758/479,873.25 = 479,873.25/x
  3. Step 3: Cross multiply
    310,758x = 479,873.25 × 479,873.25
  4. Step 4: Simplify right side
    310,758x = 230,278,336,065.56
  5. Step 5: Solve for x
    x = 230,278,336,065.56/310,758
  6. Step 6: Final answer
    x = 741,021.43

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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.