Home / 831,194.37-1,246,791.55-641,930.78

Finding the Fourth Proportional to 831,194.37, 1,246,791.55 and 641,930.78

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Solution

The fourth proportional to 831,194.37, 1,246,791.55 and 641,930.78 is: 962,896.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,194.37 : 1,246,791.55 = 641,930.78 : x
  2. Step 2: Convert to fraction form
    831,194.37/1,246,791.55 = 641,930.78/x
  3. Step 3: Cross multiply
    831,194.37x = 1,246,791.55 × 641,930.78
  4. Step 4: Simplify right side
    831,194.37x = 800,353,868,979.26
  5. Step 5: Solve for x
    x = 800,353,868,979.26/831,194.37
  6. Step 6: Final answer
    x = 962,896.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.