Home / 1,196,199.20-1,650,791.76-687,003.68

Finding the Fourth Proportional to 1,196,199.20, 1,650,791.76 and 687,003.68

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Solution

The fourth proportional to 1,196,199.20, 1,650,791.76 and 687,003.68 is: 948,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,199.20 : 1,650,791.76 = 687,003.68 : x
  2. Step 2: Convert to fraction form
    1,196,199.20/1,650,791.76 = 687,003.68/x
  3. Step 3: Cross multiply
    1,196,199.20x = 1,650,791.76 × 687,003.68
  4. Step 4: Simplify right side
    1,196,199.20x = 1,134,100,014,033.68
  5. Step 5: Solve for x
    x = 1,134,100,014,033.68/1,196,199.20
  6. Step 6: Final answer
    x = 948,086.25

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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.