Home / 465,619.80-641,942.47-304,194.36

Finding the Fourth Proportional to 465,619.80, 641,942.47 and 304,194.36

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Solution

The fourth proportional to 465,619.80, 641,942.47 and 304,194.36 is: 419,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,619.80 : 641,942.47 = 304,194.36 : x
  2. Step 2: Convert to fraction form
    465,619.80/641,942.47 = 304,194.36/x
  3. Step 3: Cross multiply
    465,619.80x = 641,942.47 × 304,194.36
  4. Step 4: Simplify right side
    465,619.80x = 195,275,278,818.47
  5. Step 5: Solve for x
    x = 195,275,278,818.47/465,619.80
  6. Step 6: Final answer
    x = 419,387.83

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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.