Home / 1,987,425.90-2,741,730.66-1,171,072.26

Finding the Fourth Proportional to 1,987,425.90, 2,741,730.66 and 1,171,072.26

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Solution

The fourth proportional to 1,987,425.90, 2,741,730.66 and 1,171,072.26 is: 1,615,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,425.90 : 2,741,730.66 = 1,171,072.26 : x
  2. Step 2: Convert to fraction form
    1,987,425.90/2,741,730.66 = 1,171,072.26/x
  3. Step 3: Cross multiply
    1,987,425.90x = 2,741,730.66 × 1,171,072.26
  4. Step 4: Simplify right side
    1,987,425.90x = 3,210,764,720,317.49
  5. Step 5: Solve for x
    x = 3,210,764,720,317.49/1,987,425.90
  6. Step 6: Final answer
    x = 1,615,539.34

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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.