Home / 419,631.47-579,091.52-228,644.86

Finding the Fourth Proportional to 419,631.47, 579,091.52 and 228,644.86

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Solution

The fourth proportional to 419,631.47, 579,091.52 and 228,644.86 is: 315,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,631.47 : 579,091.52 = 228,644.86 : x
  2. Step 2: Convert to fraction form
    419,631.47/579,091.52 = 228,644.86/x
  3. Step 3: Cross multiply
    419,631.47x = 579,091.52 × 228,644.86
  4. Step 4: Simplify right side
    419,631.47x = 132,406,299,517.59
  5. Step 5: Solve for x
    x = 132,406,299,517.59/419,631.47
  6. Step 6: Final answer
    x = 315,529.96

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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.