Home / 831,864.86-1,147,974.27-449,891.64

Finding the Fourth Proportional to 831,864.86, 1,147,974.27 and 449,891.64

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Solution

The fourth proportional to 831,864.86, 1,147,974.27 and 449,891.64 is: 620,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,864.86 : 1,147,974.27 = 449,891.64 : x
  2. Step 2: Convert to fraction form
    831,864.86/1,147,974.27 = 449,891.64/x
  3. Step 3: Cross multiply
    831,864.86x = 1,147,974.27 × 449,891.64
  4. Step 4: Simplify right side
    831,864.86x = 516,464,029,182.32
  5. Step 5: Solve for x
    x = 516,464,029,182.32/831,864.86
  6. Step 6: Final answer
    x = 620,850.88

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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.