Home / 1,321,991.07-1,824,184.37-805,556.74

Finding the Fourth Proportional to 1,321,991.07, 1,824,184.37 and 805,556.74

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Solution

The fourth proportional to 1,321,991.07, 1,824,184.37 and 805,556.74 is: 1,111,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,991.07 : 1,824,184.37 = 805,556.74 : x
  2. Step 2: Convert to fraction form
    1,321,991.07/1,824,184.37 = 805,556.74/x
  3. Step 3: Cross multiply
    1,321,991.07x = 1,824,184.37 × 805,556.74
  4. Step 4: Simplify right side
    1,321,991.07x = 1,469,484,001,107.45
  5. Step 5: Solve for x
    x = 1,469,484,001,107.45/1,321,991.07
  6. Step 6: Final answer
    x = 1,111,568.78

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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.