Home / 2,157,198.60-2,976,930.52-1,190,328.12

Finding the Fourth Proportional to 2,157,198.60, 2,976,930.52 and 1,190,328.12

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Solution

The fourth proportional to 2,157,198.60, 2,976,930.52 and 1,190,328.12 is: 1,642,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,198.60 : 2,976,930.52 = 1,190,328.12 : x
  2. Step 2: Convert to fraction form
    2,157,198.60/2,976,930.52 = 1,190,328.12/x
  3. Step 3: Cross multiply
    2,157,198.60x = 2,976,930.52 × 1,190,328.12
  4. Step 4: Simplify right side
    2,157,198.60x = 3,543,524,109,242.22
  5. Step 5: Solve for x
    x = 3,543,524,109,242.22/2,157,198.60
  6. Step 6: Final answer
    x = 1,642,650.85

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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.