Home / 548,839.80-822,786.57-212,116.68

Finding the Fourth Proportional to 548,839.80, 822,786.57 and 212,116.68

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Solution

The fourth proportional to 548,839.80, 822,786.57 and 212,116.68 is: 317,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,839.80 : 822,786.57 = 212,116.68 : x
  2. Step 2: Convert to fraction form
    548,839.80/822,786.57 = 212,116.68/x
  3. Step 3: Cross multiply
    548,839.80x = 822,786.57 × 212,116.68
  4. Step 4: Simplify right side
    548,839.80x = 174,526,755,576.99
  5. Step 5: Solve for x
    x = 174,526,755,576.99/548,839.80
  6. Step 6: Final answer
    x = 317,992.16

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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.