Home / 419,727.50-579,207.04-228,736.78

Finding the Fourth Proportional to 419,727.50, 579,207.04 and 228,736.78

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Solution

The fourth proportional to 419,727.50, 579,207.04 and 228,736.78 is: 315,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,727.50 : 579,207.04 = 228,736.78 : x
  2. Step 2: Convert to fraction form
    419,727.50/579,207.04 = 228,736.78/x
  3. Step 3: Cross multiply
    419,727.50x = 579,207.04 × 228,736.78
  4. Step 4: Simplify right side
    419,727.50x = 132,485,953,282.93
  5. Step 5: Solve for x
    x = 132,485,953,282.93/419,727.50
  6. Step 6: Final answer
    x = 315,647.54

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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.