Home / 646,131.80-969,286.44-219,553.04

Finding the Fourth Proportional to 646,131.80, 969,286.44 and 219,553.04

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Solution

The fourth proportional to 646,131.80, 969,286.44 and 219,553.04 is: 329,359.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,131.80 : 969,286.44 = 219,553.04 : x
  2. Step 2: Convert to fraction form
    646,131.80/969,286.44 = 219,553.04/x
  3. Step 3: Cross multiply
    646,131.80x = 969,286.44 × 219,553.04
  4. Step 4: Simplify right side
    646,131.80x = 212,809,784,532.78
  5. Step 5: Solve for x
    x = 212,809,784,532.78/646,131.80
  6. Step 6: Final answer
    x = 329,359.71

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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.