Home / 780,377.28-1,170,659.72-274,833.84

Finding the Fourth Proportional to 780,377.28, 1,170,659.72 and 274,833.84

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Solution

The fourth proportional to 780,377.28, 1,170,659.72 and 274,833.84 is: 412,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,377.28 : 1,170,659.72 = 274,833.84 : x
  2. Step 2: Convert to fraction form
    780,377.28/1,170,659.72 = 274,833.84/x
  3. Step 3: Cross multiply
    780,377.28x = 1,170,659.72 × 274,833.84
  4. Step 4: Simplify right side
    780,377.28x = 321,736,906,180.93
  5. Step 5: Solve for x
    x = 321,736,906,180.93/780,377.28
  6. Step 6: Final answer
    x = 412,283.79

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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.