Home / 809,300.85-1,213,688.44-269,412.09

Finding the Fourth Proportional to 809,300.85, 1,213,688.44 and 269,412.09

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Solution

The fourth proportional to 809,300.85, 1,213,688.44 and 269,412.09 is: 404,030.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,300.85 : 1,213,688.44 = 269,412.09 : x
  2. Step 2: Convert to fraction form
    809,300.85/1,213,688.44 = 269,412.09/x
  3. Step 3: Cross multiply
    809,300.85x = 1,213,688.44 × 269,412.09
  4. Step 4: Simplify right side
    809,300.85x = 326,982,339,229.24
  5. Step 5: Solve for x
    x = 326,982,339,229.24/809,300.85
  6. Step 6: Final answer
    x = 404,030.64

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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.