Home / 811,846.57-1,120,350.44-449,295.43

Finding the Fourth Proportional to 811,846.57, 1,120,350.44 and 449,295.43

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Solution

The fourth proportional to 811,846.57, 1,120,350.44 and 449,295.43 is: 620,028.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,846.57 : 1,120,350.44 = 449,295.43 : x
  2. Step 2: Convert to fraction form
    811,846.57/1,120,350.44 = 449,295.43/x
  3. Step 3: Cross multiply
    811,846.57x = 1,120,350.44 × 449,295.43
  4. Step 4: Simplify right side
    811,846.57x = 503,368,327,643.14
  5. Step 5: Solve for x
    x = 503,368,327,643.14/811,846.57
  6. Step 6: Final answer
    x = 620,028.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.