Home / 539,320.13-809,289.30-219,412.97

Finding the Fourth Proportional to 539,320.13, 809,289.30 and 219,412.97

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Solution

The fourth proportional to 539,320.13, 809,289.30 and 219,412.97 is: 329,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,320.13 : 809,289.30 = 219,412.97 : x
  2. Step 2: Convert to fraction form
    539,320.13/809,289.30 = 219,412.97/x
  3. Step 3: Cross multiply
    539,320.13x = 809,289.30 × 219,412.97
  4. Step 4: Simplify right side
    539,320.13x = 177,568,568,902.22
  5. Step 5: Solve for x
    x = 177,568,568,902.22/539,320.13
  6. Step 6: Final answer
    x = 329,245.21

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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.