Home / 419,072.15-578,319.57-228,086.93

Finding the Fourth Proportional to 419,072.15, 578,319.57 and 228,086.93

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Solution

The fourth proportional to 419,072.15, 578,319.57 and 228,086.93 is: 314,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,072.15 : 578,319.57 = 228,086.93 : x
  2. Step 2: Convert to fraction form
    419,072.15/578,319.57 = 228,086.93/x
  3. Step 3: Cross multiply
    419,072.15x = 578,319.57 × 228,086.93
  4. Step 4: Simplify right side
    419,072.15x = 131,907,132,388.62
  5. Step 5: Solve for x
    x = 131,907,132,388.62/419,072.15
  6. Step 6: Final answer
    x = 314,759.96

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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.