Home / 809,322.20-1,213,983.30-276,795.80

Finding the Fourth Proportional to 809,322.20, 1,213,983.30 and 276,795.80

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Solution

The fourth proportional to 809,322.20, 1,213,983.30 and 276,795.80 is: 415,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,322.20 : 1,213,983.30 = 276,795.80 : x
  2. Step 2: Convert to fraction form
    809,322.20/1,213,983.30 = 276,795.80/x
  3. Step 3: Cross multiply
    809,322.20x = 1,213,983.30 × 276,795.80
  4. Step 4: Simplify right side
    809,322.20x = 336,025,478,710.14
  5. Step 5: Solve for x
    x = 336,025,478,710.14/809,322.20
  6. Step 6: Final answer
    x = 415,193.70

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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.