Home / 378,984.96-568,425.60-112,786.56

Finding the Fourth Proportional to 378,984.96, 568,425.60 and 112,786.56

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Solution

The fourth proportional to 378,984.96, 568,425.60 and 112,786.56 is: 169,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,984.96 : 568,425.60 = 112,786.56 : x
  2. Step 2: Convert to fraction form
    378,984.96/568,425.60 = 112,786.56/x
  3. Step 3: Cross multiply
    378,984.96x = 568,425.60 × 112,786.56
  4. Step 4: Simplify right side
    378,984.96x = 64,110,768,039.94
  5. Step 5: Solve for x
    x = 64,110,768,039.94/378,984.96
  6. Step 6: Final answer
    x = 169,164.41

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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.