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Finding the Fourth Proportional to 479,275, 659,844.78 and 377,120.44

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Solution

The fourth proportional to 479,275, 659,844.78 and 377,120.44 is: 519,202.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,275 : 659,844.78 = 377,120.44 : x
  2. Step 2: Convert to fraction form
    479,275/659,844.78 = 377,120.44/x
  3. Step 3: Cross multiply
    479,275x = 659,844.78 × 377,120.44
  4. Step 4: Simplify right side
    479,275x = 248,840,953,765.30
  5. Step 5: Solve for x
    x = 248,840,953,765.30/479,275
  6. Step 6: Final answer
    x = 519,202.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.