Home / 821,791.64-1,230,582.78-568,721.72

Finding the Fourth Proportional to 821,791.64, 1,230,582.78 and 568,721.72

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Solution

The fourth proportional to 821,791.64, 1,230,582.78 and 568,721.72 is: 851,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,791.64 : 1,230,582.78 = 568,721.72 : x
  2. Step 2: Convert to fraction form
    821,791.64/1,230,582.78 = 568,721.72/x
  3. Step 3: Cross multiply
    821,791.64x = 1,230,582.78 × 568,721.72
  4. Step 4: Simplify right side
    821,791.64x = 699,859,155,243.98
  5. Step 5: Solve for x
    x = 699,859,155,243.98/821,791.64
  6. Step 6: Final answer
    x = 851,626.03

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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.