Home / 1,221,868.26-1,686,097.17-677,969.58

Finding the Fourth Proportional to 1,221,868.26, 1,686,097.17 and 677,969.58

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Solution

The fourth proportional to 1,221,868.26, 1,686,097.17 and 677,969.58 is: 935,553.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,868.26 : 1,686,097.17 = 677,969.58 : x
  2. Step 2: Convert to fraction form
    1,221,868.26/1,686,097.17 = 677,969.58/x
  3. Step 3: Cross multiply
    1,221,868.26x = 1,686,097.17 × 677,969.58
  4. Step 4: Simplify right side
    1,221,868.26x = 1,143,122,590,184.09
  5. Step 5: Solve for x
    x = 1,143,122,590,184.09/1,221,868.26
  6. Step 6: Final answer
    x = 935,553.06

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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.