Home / 419,217.55-578,530.62-228,241.42

Finding the Fourth Proportional to 419,217.55, 578,530.62 and 228,241.42

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Solution

The fourth proportional to 419,217.55, 578,530.62 and 228,241.42 is: 314,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,217.55 : 578,530.62 = 228,241.42 : x
  2. Step 2: Convert to fraction form
    419,217.55/578,530.62 = 228,241.42/x
  3. Step 3: Cross multiply
    419,217.55x = 578,530.62 × 228,241.42
  4. Step 4: Simplify right side
    419,217.55x = 132,044,650,222.28
  5. Step 5: Solve for x
    x = 132,044,650,222.28/419,217.55
  6. Step 6: Final answer
    x = 314,978.82

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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.