Home / 515,080.07-772,842.11-278,589.23

Finding the Fourth Proportional to 515,080.07, 772,842.11 and 278,589.23

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Solution

The fourth proportional to 515,080.07, 772,842.11 and 278,589.23 is: 418,003.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,080.07 : 772,842.11 = 278,589.23 : x
  2. Step 2: Convert to fraction form
    515,080.07/772,842.11 = 278,589.23/x
  3. Step 3: Cross multiply
    515,080.07x = 772,842.11 × 278,589.23
  4. Step 4: Simplify right side
    515,080.07x = 215,305,488,336.48
  5. Step 5: Solve for x
    x = 215,305,488,336.48/515,080.07
  6. Step 6: Final answer
    x = 418,003.92

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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.