Home / 780,301.55-1,170,452.33-219,336.05

Finding the Fourth Proportional to 780,301.55, 1,170,452.33 and 219,336.05

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Solution

The fourth proportional to 780,301.55, 1,170,452.33 and 219,336.05 is: 329,004.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,301.55 : 1,170,452.33 = 219,336.05 : x
  2. Step 2: Convert to fraction form
    780,301.55/1,170,452.33 = 219,336.05/x
  3. Step 3: Cross multiply
    780,301.55x = 1,170,452.33 × 219,336.05
  4. Step 4: Simplify right side
    780,301.55x = 256,722,383,826.56
  5. Step 5: Solve for x
    x = 256,722,383,826.56/780,301.55
  6. Step 6: Final answer
    x = 329,004.07

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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.