Home / 500,305.68-690,415.20-273,951.36

Finding the Fourth Proportional to 500,305.68, 690,415.20 and 273,951.36

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Solution

The fourth proportional to 500,305.68, 690,415.20 and 273,951.36 is: 378,049.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,305.68 : 690,415.20 = 273,951.36 : x
  2. Step 2: Convert to fraction form
    500,305.68/690,415.20 = 273,951.36/x
  3. Step 3: Cross multiply
    500,305.68x = 690,415.20 × 273,951.36
  4. Step 4: Simplify right side
    500,305.68x = 189,140,183,004.67
  5. Step 5: Solve for x
    x = 189,140,183,004.67/500,305.68
  6. Step 6: Final answer
    x = 378,049.24

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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.