Home / 419,961.40-579,549.45-228,977.98

Finding the Fourth Proportional to 419,961.40, 579,549.45 and 228,977.98

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Solution

The fourth proportional to 419,961.40, 579,549.45 and 228,977.98 is: 315,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,961.40 : 579,549.45 = 228,977.98 : x
  2. Step 2: Convert to fraction form
    419,961.40/579,549.45 = 228,977.98/x
  3. Step 3: Cross multiply
    419,961.40x = 579,549.45 × 228,977.98
  4. Step 4: Simplify right side
    419,961.40x = 132,704,062,371.11
  5. Step 5: Solve for x
    x = 132,704,062,371.11/419,961.40
  6. Step 6: Final answer
    x = 315,991.09

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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.