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Finding the Fourth Proportional to 641,093.97, 960,791.52 and 340,928.22

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Solution

The fourth proportional to 641,093.97, 960,791.52 and 340,928.22 is: 510,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,093.97 : 960,791.52 = 340,928.22 : x
  2. Step 2: Convert to fraction form
    641,093.97/960,791.52 = 340,928.22/x
  3. Step 3: Cross multiply
    641,093.97x = 960,791.52 × 340,928.22
  4. Step 4: Simplify right side
    641,093.97x = 327,560,942,704.69
  5. Step 5: Solve for x
    x = 327,560,942,704.69/641,093.97
  6. Step 6: Final answer
    x = 510,940.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.