Home / 727,382.89-1,091,074.26-278,149.19

Finding the Fourth Proportional to 727,382.89, 1,091,074.26 and 278,149.19

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Solution

The fourth proportional to 727,382.89, 1,091,074.26 and 278,149.19 is: 417,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,382.89 : 1,091,074.26 = 278,149.19 : x
  2. Step 2: Convert to fraction form
    727,382.89/1,091,074.26 = 278,149.19/x
  3. Step 3: Cross multiply
    727,382.89x = 1,091,074.26 × 278,149.19
  4. Step 4: Simplify right side
    727,382.89x = 303,481,420,258.10
  5. Step 5: Solve for x
    x = 303,481,420,258.10/727,382.89
  6. Step 6: Final answer
    x = 417,223.76

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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.