Home / 1,987,515.90-2,741,854.86-1,171,162.26

Finding the Fourth Proportional to 1,987,515.90, 2,741,854.86 and 1,171,162.26

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Solution

The fourth proportional to 1,987,515.90, 2,741,854.86 and 1,171,162.26 is: 1,615,663.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,515.90 : 2,741,854.86 = 1,171,162.26 : x
  2. Step 2: Convert to fraction form
    1,987,515.90/2,741,854.86 = 1,171,162.26/x
  3. Step 3: Cross multiply
    1,987,515.90x = 2,741,854.86 × 1,171,162.26
  4. Step 4: Simplify right side
    1,987,515.90x = 3,211,156,934,429.58
  5. Step 5: Solve for x
    x = 3,211,156,934,429.58/1,987,515.90
  6. Step 6: Final answer
    x = 1,615,663.52

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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.