Home / 809,321.70-1,213,982.55-276,795.30

Finding the Fourth Proportional to 809,321.70, 1,213,982.55 and 276,795.30

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Solution

The fourth proportional to 809,321.70, 1,213,982.55 and 276,795.30 is: 415,192.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,321.70 : 1,213,982.55 = 276,795.30 : x
  2. Step 2: Convert to fraction form
    809,321.70/1,213,982.55 = 276,795.30/x
  3. Step 3: Cross multiply
    809,321.70x = 1,213,982.55 × 276,795.30
  4. Step 4: Simplify right side
    809,321.70x = 336,024,664,122.02
  5. Step 5: Solve for x
    x = 336,024,664,122.02/809,321.70
  6. Step 6: Final answer
    x = 415,192.95

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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.