Home / 809,140.21-1,213,710.92-276,665.24

Finding the Fourth Proportional to 809,140.21, 1,213,710.92 and 276,665.24

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Solution

The fourth proportional to 809,140.21, 1,213,710.92 and 276,665.24 is: 414,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,140.21 : 1,213,710.92 = 276,665.24 : x
  2. Step 2: Convert to fraction form
    809,140.21/1,213,710.92 = 276,665.24/x
  3. Step 3: Cross multiply
    809,140.21x = 1,213,710.92 × 276,665.24
  4. Step 4: Simplify right side
    809,140.21x = 335,791,622,972.42
  5. Step 5: Solve for x
    x = 335,791,622,972.42/809,140.21
  6. Step 6: Final answer
    x = 414,998.07

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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.