Home / 831,305.37-1,147,200.78-449,332.16

Finding the Fourth Proportional to 831,305.37, 1,147,200.78 and 449,332.16

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Solution

The fourth proportional to 831,305.37, 1,147,200.78 and 449,332.16 is: 620,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,305.37 : 1,147,200.78 = 449,332.16 : x
  2. Step 2: Convert to fraction form
    831,305.37/1,147,200.78 = 449,332.16/x
  3. Step 3: Cross multiply
    831,305.37x = 1,147,200.78 × 449,332.16
  4. Step 4: Simplify right side
    831,305.37x = 515,474,198,695.08
  5. Step 5: Solve for x
    x = 515,474,198,695.08/831,305.37
  6. Step 6: Final answer
    x = 620,078.03

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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.