Home / 1,987,943.82-2,743,287.14-1,214,867.57

Finding the Fourth Proportional to 1,987,943.82, 2,743,287.14 and 1,214,867.57

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Solution

The fourth proportional to 1,987,943.82, 2,743,287.14 and 1,214,867.57 is: 1,676,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,943.82 : 2,743,287.14 = 1,214,867.57 : x
  2. Step 2: Convert to fraction form
    1,987,943.82/2,743,287.14 = 1,214,867.57/x
  3. Step 3: Cross multiply
    1,987,943.82x = 2,743,287.14 × 1,214,867.57
  4. Step 4: Simplify right side
    1,987,943.82x = 3,332,730,570,904.78
  5. Step 5: Solve for x
    x = 3,332,730,570,904.78/1,987,943.82
  6. Step 6: Final answer
    x = 1,676,471.21

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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.