Home / 831,867.74-1,147,978.24-449,894.52

Finding the Fourth Proportional to 831,867.74, 1,147,978.24 and 449,894.52

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Solution

The fourth proportional to 831,867.74, 1,147,978.24 and 449,894.52 is: 620,854.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,867.74 : 1,147,978.24 = 449,894.52 : x
  2. Step 2: Convert to fraction form
    831,867.74/1,147,978.24 = 449,894.52/x
  3. Step 3: Cross multiply
    831,867.74x = 1,147,978.24 × 449,894.52
  4. Step 4: Simplify right side
    831,867.74x = 516,469,119,255.25
  5. Step 5: Solve for x
    x = 516,469,119,255.25/831,867.74
  6. Step 6: Final answer
    x = 620,854.85

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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.