Home / 419,629.14-579,071.96-228,643.96

Finding the Fourth Proportional to 419,629.14, 579,071.96 and 228,643.96

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Solution

The fourth proportional to 419,629.14, 579,071.96 and 228,643.96 is: 315,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,629.14 : 579,071.96 = 228,643.96 : x
  2. Step 2: Convert to fraction form
    419,629.14/579,071.96 = 228,643.96/x
  3. Step 3: Cross multiply
    419,629.14x = 579,071.96 × 228,643.96
  4. Step 4: Simplify right side
    419,629.14x = 132,401,306,059.36
  5. Step 5: Solve for x
    x = 132,401,306,059.36/419,629.14
  6. Step 6: Final answer
    x = 315,519.81

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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.