Home / 831,826.36-1,147,923.84-449,853.15

Finding the Fourth Proportional to 831,826.36, 1,147,923.84 and 449,853.15

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Solution

The fourth proportional to 831,826.36, 1,147,923.84 and 449,853.15 is: 620,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,826.36 : 1,147,923.84 = 449,853.15 : x
  2. Step 2: Convert to fraction form
    831,826.36/1,147,923.84 = 449,853.15/x
  3. Step 3: Cross multiply
    831,826.36x = 1,147,923.84 × 449,853.15
  4. Step 4: Simplify right side
    831,826.36x = 516,397,149,644.48
  5. Step 5: Solve for x
    x = 516,397,149,644.48/831,826.36
  6. Step 6: Final answer
    x = 620,799.21

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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.