Home / 831,607.23-1,247,564.67-263,131.43

Finding the Fourth Proportional to 831,607.23, 1,247,564.67 and 263,131.43

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Solution

The fourth proportional to 831,607.23, 1,247,564.67 and 263,131.43 is: 394,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,607.23 : 1,247,564.67 = 263,131.43 : x
  2. Step 2: Convert to fraction form
    831,607.23/1,247,564.67 = 263,131.43/x
  3. Step 3: Cross multiply
    831,607.23x = 1,247,564.67 × 263,131.43
  4. Step 4: Simplify right side
    831,607.23x = 328,273,469,396.76
  5. Step 5: Solve for x
    x = 328,273,469,396.76/831,607.23
  6. Step 6: Final answer
    x = 394,745.81

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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.