Home / 419,531.67-578,948.43-228,540.96

Finding the Fourth Proportional to 419,531.67, 578,948.43 and 228,540.96

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Solution

The fourth proportional to 419,531.67, 578,948.43 and 228,540.96 is: 315,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,531.67 : 578,948.43 = 228,540.96 : x
  2. Step 2: Convert to fraction form
    419,531.67/578,948.43 = 228,540.96/x
  3. Step 3: Cross multiply
    419,531.67x = 578,948.43 × 228,540.96
  4. Step 4: Simplify right side
    419,531.67x = 132,313,429,982.69
  5. Step 5: Solve for x
    x = 132,313,429,982.69/419,531.67
  6. Step 6: Final answer
    x = 315,383.65

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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.