Home / 727,613.15-1,091,419.79-278,471.79

Finding the Fourth Proportional to 727,613.15, 1,091,419.79 and 278,471.79

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Solution

The fourth proportional to 727,613.15, 1,091,419.79 and 278,471.79 is: 417,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,613.15 : 1,091,419.79 = 278,471.79 : x
  2. Step 2: Convert to fraction form
    727,613.15/1,091,419.79 = 278,471.79/x
  3. Step 3: Cross multiply
    727,613.15x = 1,091,419.79 × 278,471.79
  4. Step 4: Simplify right side
    727,613.15x = 303,929,621,170.37
  5. Step 5: Solve for x
    x = 303,929,621,170.37/727,613.15
  6. Step 6: Final answer
    x = 417,707.71

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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.