Home / 380,610.15-570,736.42-220,731.52

Finding the Fourth Proportional to 380,610.15, 570,736.42 and 220,731.52

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Solution

The fourth proportional to 380,610.15, 570,736.42 and 220,731.52 is: 330,993.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,610.15 : 570,736.42 = 220,731.52 : x
  2. Step 2: Convert to fraction form
    380,610.15/570,736.42 = 220,731.52/x
  3. Step 3: Cross multiply
    380,610.15x = 570,736.42 × 220,731.52
  4. Step 4: Simplify right side
    380,610.15x = 125,979,517,505.96
  5. Step 5: Solve for x
    x = 125,979,517,505.96/380,610.15
  6. Step 6: Final answer
    x = 330,993.58

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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.