Home / 380,789.46-571,119.66-178,406.64

Finding the Fourth Proportional to 380,789.46, 571,119.66 and 178,406.64

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Solution

The fourth proportional to 380,789.46, 571,119.66 and 178,406.64 is: 267,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,789.46 : 571,119.66 = 178,406.64 : x
  2. Step 2: Convert to fraction form
    380,789.46/571,119.66 = 178,406.64/x
  3. Step 3: Cross multiply
    380,789.46x = 571,119.66 × 178,406.64
  4. Step 4: Simplify right side
    380,789.46x = 101,891,539,578.54
  5. Step 5: Solve for x
    x = 101,891,539,578.54/380,789.46
  6. Step 6: Final answer
    x = 267,579.73

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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.