Home / 809,715.90-1,213,760.94-276,872.46

Finding the Fourth Proportional to 809,715.90, 1,213,760.94 and 276,872.46

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Solution

The fourth proportional to 809,715.90, 1,213,760.94 and 276,872.46 is: 415,030.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,715.90 : 1,213,760.94 = 276,872.46 : x
  2. Step 2: Convert to fraction form
    809,715.90/1,213,760.94 = 276,872.46/x
  3. Step 3: Cross multiply
    809,715.90x = 1,213,760.94 × 276,872.46
  4. Step 4: Simplify right side
    809,715.90x = 336,056,977,309.71
  5. Step 5: Solve for x
    x = 336,056,977,309.71/809,715.90
  6. Step 6: Final answer
    x = 415,030.73

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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.