Home / 419,727.25-579,206.70-228,736.54

Finding the Fourth Proportional to 419,727.25, 579,206.70 and 228,736.54

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Solution

The fourth proportional to 419,727.25, 579,206.70 and 228,736.54 is: 315,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,727.25 : 579,206.70 = 228,736.54 : x
  2. Step 2: Convert to fraction form
    419,727.25/579,206.70 = 228,736.54/x
  3. Step 3: Cross multiply
    419,727.25x = 579,206.70 × 228,736.54
  4. Step 4: Simplify right side
    419,727.25x = 132,485,736,502.82
  5. Step 5: Solve for x
    x = 132,485,736,502.82/419,727.25
  6. Step 6: Final answer
    x = 315,647.21

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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.