Home / 3,179,668.37-4,769,505.79-1,286,426.21

Finding the Fourth Proportional to 3,179,668.37, 4,769,505.79 and 1,286,426.21

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Solution

The fourth proportional to 3,179,668.37, 4,769,505.79 and 1,286,426.21 is: 1,929,640.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,668.37 : 4,769,505.79 = 1,286,426.21 : x
  2. Step 2: Convert to fraction form
    3,179,668.37/4,769,505.79 = 1,286,426.21/x
  3. Step 3: Cross multiply
    3,179,668.37x = 4,769,505.79 × 1,286,426.21
  4. Step 4: Simplify right side
    3,179,668.37x = 6,135,617,229,939.16
  5. Step 5: Solve for x
    x = 6,135,617,229,939.16/3,179,668.37
  6. Step 6: Final answer
    x = 1,929,640.62

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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.