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Finding the Fourth Proportional to 494,606.82, 682,530.39 and 279,789.96

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Solution

The fourth proportional to 494,606.82, 682,530.39 and 279,789.96 is: 386,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,606.82 : 682,530.39 = 279,789.96 : x
  2. Step 2: Convert to fraction form
    494,606.82/682,530.39 = 279,789.96/x
  3. Step 3: Cross multiply
    494,606.82x = 682,530.39 × 279,789.96
  4. Step 4: Simplify right side
    494,606.82x = 190,965,150,516.88
  5. Step 5: Solve for x
    x = 190,965,150,516.88/494,606.82
  6. Step 6: Final answer
    x = 386,094.86

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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.