Home / 780,149.55-1,170,224.33-380,851.95

Finding the Fourth Proportional to 780,149.55, 1,170,224.33 and 380,851.95

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Solution

The fourth proportional to 780,149.55, 1,170,224.33 and 380,851.95 is: 571,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,149.55 : 1,170,224.33 = 380,851.95 : x
  2. Step 2: Convert to fraction form
    780,149.55/1,170,224.33 = 380,851.95/x
  3. Step 3: Cross multiply
    780,149.55x = 1,170,224.33 × 380,851.95
  4. Step 4: Simplify right side
    780,149.55x = 445,682,216,113.68
  5. Step 5: Solve for x
    x = 445,682,216,113.68/780,149.55
  6. Step 6: Final answer
    x = 571,277.93

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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.