Home / 679,519.80-1,019,285.82-206,205.14

Finding the Fourth Proportional to 679,519.80, 1,019,285.82 and 206,205.14

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Solution

The fourth proportional to 679,519.80, 1,019,285.82 and 206,205.14 is: 309,309.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,519.80 : 1,019,285.82 = 206,205.14 : x
  2. Step 2: Convert to fraction form
    679,519.80/1,019,285.82 = 206,205.14/x
  3. Step 3: Cross multiply
    679,519.80x = 1,019,285.82 × 206,205.14
  4. Step 4: Simplify right side
    679,519.80x = 210,181,970,116.69
  5. Step 5: Solve for x
    x = 210,181,970,116.69/679,519.80
  6. Step 6: Final answer
    x = 309,309.56

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1.5x scale

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.