Home / 378,865.09-568,391.19-112,624.48

Finding the Fourth Proportional to 378,865.09, 568,391.19 and 112,624.48

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Solution

The fourth proportional to 378,865.09, 568,391.19 and 112,624.48 is: 168,964.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,865.09 : 568,391.19 = 112,624.48 : x
  2. Step 2: Convert to fraction form
    378,865.09/568,391.19 = 112,624.48/x
  3. Step 3: Cross multiply
    378,865.09x = 568,391.19 × 112,624.48
  4. Step 4: Simplify right side
    378,865.09x = 64,014,762,210.33
  5. Step 5: Solve for x
    x = 64,014,762,210.33/378,865.09
  6. Step 6: Final answer
    x = 168,964.53

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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.