Home / 781,179.57-1,171,769.36-741,288.69

Finding the Fourth Proportional to 781,179.57, 1,171,769.36 and 741,288.69

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Solution

The fourth proportional to 781,179.57, 1,171,769.36 and 741,288.69 is: 1,111,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,179.57 : 1,171,769.36 = 741,288.69 : x
  2. Step 2: Convert to fraction form
    781,179.57/1,171,769.36 = 741,288.69/x
  3. Step 3: Cross multiply
    781,179.57x = 1,171,769.36 × 741,288.69
  4. Step 4: Simplify right side
    781,179.57x = 868,619,370,150.10
  5. Step 5: Solve for x
    x = 868,619,370,150.10/781,179.57
  6. Step 6: Final answer
    x = 1,111,933.04

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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.