Home / 831,305.57-1,147,201.03-449,332.35

Finding the Fourth Proportional to 831,305.57, 1,147,201.03 and 449,332.35

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Solution

The fourth proportional to 831,305.57, 1,147,201.03 and 449,332.35 is: 620,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,305.57 : 1,147,201.03 = 449,332.35 : x
  2. Step 2: Convert to fraction form
    831,305.57/1,147,201.03 = 449,332.35/x
  3. Step 3: Cross multiply
    831,305.57x = 1,147,201.03 × 449,332.35
  4. Step 4: Simplify right side
    831,305.57x = 515,474,530,991.98
  5. Step 5: Solve for x
    x = 515,474,530,991.98/831,305.57
  6. Step 6: Final answer
    x = 620,078.29

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1.5x scale

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.