Home / 831,301.50-1,147,201.30-449,327.36

Finding the Fourth Proportional to 831,301.50, 1,147,201.30 and 449,327.36

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Solution

The fourth proportional to 831,301.50, 1,147,201.30 and 449,327.36 is: 620,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,301.50 : 1,147,201.30 = 449,327.36 : x
  2. Step 2: Convert to fraction form
    831,301.50/1,147,201.30 = 449,327.36/x
  3. Step 3: Cross multiply
    831,301.50x = 1,147,201.30 × 449,327.36
  4. Step 4: Simplify right side
    831,301.50x = 515,468,931,517.57
  5. Step 5: Solve for x
    x = 515,468,931,517.57/831,301.50
  6. Step 6: Final answer
    x = 620,074.58

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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.