Home / 863,912.78-1,192,436.76-501,453.41

Finding the Fourth Proportional to 863,912.78, 1,192,436.76 and 501,453.41

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Solution

The fourth proportional to 863,912.78, 1,192,436.76 and 501,453.41 is: 692,143.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,912.78 : 1,192,436.76 = 501,453.41 : x
  2. Step 2: Convert to fraction form
    863,912.78/1,192,436.76 = 501,453.41/x
  3. Step 3: Cross multiply
    863,912.78x = 1,192,436.76 × 501,453.41
  4. Step 4: Simplify right side
    863,912.78x = 597,951,479,511.35
  5. Step 5: Solve for x
    x = 597,951,479,511.35/863,912.78
  6. Step 6: Final answer
    x = 692,143.34

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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.