Home / 809,381.80-1,214,072.70-276,920.20

Finding the Fourth Proportional to 809,381.80, 1,214,072.70 and 276,920.20

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Solution

The fourth proportional to 809,381.80, 1,214,072.70 and 276,920.20 is: 415,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,381.80 : 1,214,072.70 = 276,920.20 : x
  2. Step 2: Convert to fraction form
    809,381.80/1,214,072.70 = 276,920.20/x
  3. Step 3: Cross multiply
    809,381.80x = 1,214,072.70 × 276,920.20
  4. Step 4: Simplify right side
    809,381.80x = 336,201,254,898.54
  5. Step 5: Solve for x
    x = 336,201,254,898.54/809,381.80
  6. Step 6: Final answer
    x = 415,380.30

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Similar ratio
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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.