Home / 1,988,163.36-2,743,701.71-1,105,195.43

Finding the Fourth Proportional to 1,988,163.36, 2,743,701.71 and 1,105,195.43

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Solution

The fourth proportional to 1,988,163.36, 2,743,701.71 and 1,105,195.43 is: 1,525,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,163.36 : 2,743,701.71 = 1,105,195.43 : x
  2. Step 2: Convert to fraction form
    1,988,163.36/2,743,701.71 = 1,105,195.43/x
  3. Step 3: Cross multiply
    1,988,163.36x = 2,743,701.71 × 1,105,195.43
  4. Step 4: Simplify right side
    1,988,163.36x = 3,032,326,600,797.43
  5. Step 5: Solve for x
    x = 3,032,326,600,797.43/1,988,163.36
  6. Step 6: Final answer
    x = 1,525,189.86

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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.