Home / 394,983.28-545,453.38-373,464.87

Finding the Fourth Proportional to 394,983.28, 545,453.38 and 373,464.87

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Solution

The fourth proportional to 394,983.28, 545,453.38 and 373,464.87 is: 515,737.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,983.28 : 545,453.38 = 373,464.87 : x
  2. Step 2: Convert to fraction form
    394,983.28/545,453.38 = 373,464.87/x
  3. Step 3: Cross multiply
    394,983.28x = 545,453.38 × 373,464.87
  4. Step 4: Simplify right side
    394,983.28x = 203,707,673,172.34
  5. Step 5: Solve for x
    x = 203,707,673,172.34/394,983.28
  6. Step 6: Final answer
    x = 515,737.46

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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.