Home / 781,923.57-1,172,981.96-276,380.30

Finding the Fourth Proportional to 781,923.57, 1,172,981.96 and 276,380.30

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Solution

The fourth proportional to 781,923.57, 1,172,981.96 and 276,380.30 is: 414,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,923.57 : 1,172,981.96 = 276,380.30 : x
  2. Step 2: Convert to fraction form
    781,923.57/1,172,981.96 = 276,380.30/x
  3. Step 3: Cross multiply
    781,923.57x = 1,172,981.96 × 276,380.30
  4. Step 4: Simplify right side
    781,923.57x = 324,189,105,999.39
  5. Step 5: Solve for x
    x = 324,189,105,999.39/781,923.57
  6. Step 6: Final answer
    x = 414,604.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.