Home / 3,517,019.40-5,275,430.20-1,121,007.60

Finding the Fourth Proportional to 3,517,019.40, 5,275,430.20 and 1,121,007.60

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Solution

The fourth proportional to 3,517,019.40, 5,275,430.20 and 1,121,007.60 is: 1,681,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517,019.40 : 5,275,430.20 = 1,121,007.60 : x
  2. Step 2: Convert to fraction form
    3,517,019.40/5,275,430.20 = 1,121,007.60/x
  3. Step 3: Cross multiply
    3,517,019.40x = 5,275,430.20 × 1,121,007.60
  4. Step 4: Simplify right side
    3,517,019.40x = 5,913,797,347,469.52
  5. Step 5: Solve for x
    x = 5,913,797,347,469.52/3,517,019.40
  6. Step 6: Final answer
    x = 1,681,479.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.