Home / 419,960.40-579,548.07-228,976.98

Finding the Fourth Proportional to 419,960.40, 579,548.07 and 228,976.98

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Solution

The fourth proportional to 419,960.40, 579,548.07 and 228,976.98 is: 315,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,960.40 : 579,548.07 = 228,976.98 : x
  2. Step 2: Convert to fraction form
    419,960.40/579,548.07 = 228,976.98/x
  3. Step 3: Cross multiply
    419,960.40x = 579,548.07 × 228,976.98
  4. Step 4: Simplify right side
    419,960.40x = 132,703,166,833.43
  5. Step 5: Solve for x
    x = 132,703,166,833.43/419,960.40
  6. Step 6: Final answer
    x = 315,989.71

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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.