Home / 839,261.21-1,259,142.37-789,131.93

Finding the Fourth Proportional to 839,261.21, 1,259,142.37 and 789,131.93

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Solution

The fourth proportional to 839,261.21, 1,259,142.37 and 789,131.93 is: 1,183,933.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,261.21 : 1,259,142.37 = 789,131.93 : x
  2. Step 2: Convert to fraction form
    839,261.21/1,259,142.37 = 789,131.93/x
  3. Step 3: Cross multiply
    839,261.21x = 1,259,142.37 × 789,131.93
  4. Step 4: Simplify right side
    839,261.21x = 993,629,440,314.33
  5. Step 5: Solve for x
    x = 993,629,440,314.33/839,261.21
  6. Step 6: Final answer
    x = 1,183,933.48

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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.