Home / 400,764.42-553,044.19-228,679.26

Finding the Fourth Proportional to 400,764.42, 553,044.19 and 228,679.26

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Solution

The fourth proportional to 400,764.42, 553,044.19 and 228,679.26 is: 315,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,764.42 : 553,044.19 = 228,679.26 : x
  2. Step 2: Convert to fraction form
    400,764.42/553,044.19 = 228,679.26/x
  3. Step 3: Cross multiply
    400,764.42x = 553,044.19 × 228,679.26
  4. Step 4: Simplify right side
    400,764.42x = 126,469,734,973.10
  5. Step 5: Solve for x
    x = 126,469,734,973.10/400,764.42
  6. Step 6: Final answer
    x = 315,571.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.