Home / 419,029.18-578,262.31-228,042.56

Finding the Fourth Proportional to 419,029.18, 578,262.31 and 228,042.56

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Solution

The fourth proportional to 419,029.18, 578,262.31 and 228,042.56 is: 314,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,029.18 : 578,262.31 = 228,042.56 : x
  2. Step 2: Convert to fraction form
    419,029.18/578,262.31 = 228,042.56/x
  3. Step 3: Cross multiply
    419,029.18x = 578,262.31 × 228,042.56
  4. Step 4: Simplify right side
    419,029.18x = 131,868,418,399.46
  5. Step 5: Solve for x
    x = 131,868,418,399.46/419,029.18
  6. Step 6: Final answer
    x = 314,699.85

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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.