Home / 831,884.03-1,147,999.98-449,910.82

Finding the Fourth Proportional to 831,884.03, 1,147,999.98 and 449,910.82

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Solution

The fourth proportional to 831,884.03, 1,147,999.98 and 449,910.82 is: 620,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,884.03 : 1,147,999.98 = 449,910.82 : x
  2. Step 2: Convert to fraction form
    831,884.03/1,147,999.98 = 449,910.82/x
  3. Step 3: Cross multiply
    831,884.03x = 1,147,999.98 × 449,910.82
  4. Step 4: Simplify right side
    831,884.03x = 516,497,612,361.78
  5. Step 5: Solve for x
    x = 516,497,612,361.78/831,884.03
  6. Step 6: Final answer
    x = 620,876.94

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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.