Home / 831,867.28-1,147,977.62-449,894.06

Finding the Fourth Proportional to 831,867.28, 1,147,977.62 and 449,894.06

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Solution

The fourth proportional to 831,867.28, 1,147,977.62 and 449,894.06 is: 620,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,867.28 : 1,147,977.62 = 449,894.06 : x
  2. Step 2: Convert to fraction form
    831,867.28/1,147,977.62 = 449,894.06/x
  3. Step 3: Cross multiply
    831,867.28x = 1,147,977.62 × 449,894.06
  4. Step 4: Simplify right side
    831,867.28x = 516,468,312,250.94
  5. Step 5: Solve for x
    x = 516,468,312,250.94/831,867.28
  6. Step 6: Final answer
    x = 620,854.22

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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.