Home / 679,561.80-1,019,345.94-206,251.26

Finding the Fourth Proportional to 679,561.80, 1,019,345.94 and 206,251.26

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Solution

The fourth proportional to 679,561.80, 1,019,345.94 and 206,251.26 is: 309,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,561.80 : 1,019,345.94 = 206,251.26 : x
  2. Step 2: Convert to fraction form
    679,561.80/1,019,345.94 = 206,251.26/x
  3. Step 3: Cross multiply
    679,561.80x = 1,019,345.94 × 206,251.26
  4. Step 4: Simplify right side
    679,561.80x = 210,241,384,500.88
  5. Step 5: Solve for x
    x = 210,241,384,500.88/679,561.80
  6. Step 6: Final answer
    x = 309,377.87

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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.