Home / 641,834.92-885,791.62-355,355.02

Finding the Fourth Proportional to 641,834.92, 885,791.62 and 355,355.02

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Solution

The fourth proportional to 641,834.92, 885,791.62 and 355,355.02 is: 490,422.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,834.92 : 885,791.62 = 355,355.02 : x
  2. Step 2: Convert to fraction form
    641,834.92/885,791.62 = 355,355.02/x
  3. Step 3: Cross multiply
    641,834.92x = 885,791.62 × 355,355.02
  4. Step 4: Simplify right side
    641,834.92x = 314,770,493,410.92
  5. Step 5: Solve for x
    x = 314,770,493,410.92/641,834.92
  6. Step 6: Final answer
    x = 490,422.82

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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.