Home / 679,486.16-1,019,377.34-206,208.56

Finding the Fourth Proportional to 679,486.16, 1,019,377.34 and 206,208.56

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Solution

The fourth proportional to 679,486.16, 1,019,377.34 and 206,208.56 is: 309,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,486.16 : 1,019,377.34 = 206,208.56 : x
  2. Step 2: Convert to fraction form
    679,486.16/1,019,377.34 = 206,208.56/x
  3. Step 3: Cross multiply
    679,486.16x = 1,019,377.34 × 206,208.56
  4. Step 4: Simplify right side
    679,486.16x = 210,204,333,378.03
  5. Step 5: Solve for x
    x = 210,204,333,378.03/679,486.16
  6. Step 6: Final answer
    x = 309,357.78

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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.