Home / 819,826.49-1,229,704.83-280,131.26

Finding the Fourth Proportional to 819,826.49, 1,229,704.83 and 280,131.26

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Solution

The fourth proportional to 819,826.49, 1,229,704.83 and 280,131.26 is: 420,184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,826.49 : 1,229,704.83 = 280,131.26 : x
  2. Step 2: Convert to fraction form
    819,826.49/1,229,704.83 = 280,131.26/x
  3. Step 3: Cross multiply
    819,826.49x = 1,229,704.83 × 280,131.26
  4. Step 4: Simplify right side
    819,826.49x = 344,478,757,307.46
  5. Step 5: Solve for x
    x = 344,478,757,307.46/819,826.49
  6. Step 6: Final answer
    x = 420,184.96

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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.