Home / 831,765.23-1,147,831.80-449,791.10

Finding the Fourth Proportional to 831,765.23, 1,147,831.80 and 449,791.10

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Solution

The fourth proportional to 831,765.23, 1,147,831.80 and 449,791.10 is: 620,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,765.23 : 1,147,831.80 = 449,791.10 : x
  2. Step 2: Convert to fraction form
    831,765.23/1,147,831.80 = 449,791.10/x
  3. Step 3: Cross multiply
    831,765.23x = 1,147,831.80 × 449,791.10
  4. Step 4: Simplify right side
    831,765.23x = 516,284,527,936.98
  5. Step 5: Solve for x
    x = 516,284,527,936.98/831,765.23
  6. Step 6: Final answer
    x = 620,709.44

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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.