Home / 1,268,984.72-1,751,194.92-725,289.20

Finding the Fourth Proportional to 1,268,984.72, 1,751,194.92 and 725,289.20

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Solution

The fourth proportional to 1,268,984.72, 1,751,194.92 and 725,289.20 is: 1,000,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,984.72 : 1,751,194.92 = 725,289.20 : x
  2. Step 2: Convert to fraction form
    1,268,984.72/1,751,194.92 = 725,289.20/x
  3. Step 3: Cross multiply
    1,268,984.72x = 1,751,194.92 × 725,289.20
  4. Step 4: Simplify right side
    1,268,984.72x = 1,270,122,762,570.86
  5. Step 5: Solve for x
    x = 1,270,122,762,570.86/1,268,984.72
  6. Step 6: Final answer
    x = 1,000,896.81

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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.