Home / 419,747.09-579,234.12-228,756.38

Finding the Fourth Proportional to 419,747.09, 579,234.12 and 228,756.38

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Solution

The fourth proportional to 419,747.09, 579,234.12 and 228,756.38 is: 315,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,747.09 : 579,234.12 = 228,756.38 : x
  2. Step 2: Convert to fraction form
    419,747.09/579,234.12 = 228,756.38/x
  3. Step 3: Cross multiply
    419,747.09x = 579,234.12 × 228,756.38
  4. Step 4: Simplify right side
    419,747.09x = 132,503,500,463.69
  5. Step 5: Solve for x
    x = 132,503,500,463.69/419,747.09
  6. Step 6: Final answer
    x = 315,674.61

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1.5x scale

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.