Home / 819,786.91-1,229,323.24-435,451.66

Finding the Fourth Proportional to 819,786.91, 1,229,323.24 and 435,451.66

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Solution

The fourth proportional to 819,786.91, 1,229,323.24 and 435,451.66 is: 652,987.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,786.91 : 1,229,323.24 = 435,451.66 : x
  2. Step 2: Convert to fraction form
    819,786.91/1,229,323.24 = 435,451.66/x
  3. Step 3: Cross multiply
    819,786.91x = 1,229,323.24 × 435,451.66
  4. Step 4: Simplify right side
    819,786.91x = 535,310,844,445.95
  5. Step 5: Solve for x
    x = 535,310,844,445.95/819,786.91
  6. Step 6: Final answer
    x = 652,987.79

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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.