Home / 831,882.35-1,147,997.61-449,909.12

Finding the Fourth Proportional to 831,882.35, 1,147,997.61 and 449,909.12

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Solution

The fourth proportional to 831,882.35, 1,147,997.61 and 449,909.12 is: 620,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,882.35 : 1,147,997.61 = 449,909.12 : x
  2. Step 2: Convert to fraction form
    831,882.35/1,147,997.61 = 449,909.12/x
  3. Step 3: Cross multiply
    831,882.35x = 1,147,997.61 × 449,909.12
  4. Step 4: Simplify right side
    831,882.35x = 516,494,597,347.20
  5. Step 5: Solve for x
    x = 516,494,597,347.20/831,882.35
  6. Step 6: Final answer
    x = 620,874.57

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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.