Home / 679,391.43-1,019,090.79-206,077.25

Finding the Fourth Proportional to 679,391.43, 1,019,090.79 and 206,077.25

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Solution

The fourth proportional to 679,391.43, 1,019,090.79 and 206,077.25 is: 309,116.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,391.43 : 1,019,090.79 = 206,077.25 : x
  2. Step 2: Convert to fraction form
    679,391.43/1,019,090.79 = 206,077.25/x
  3. Step 3: Cross multiply
    679,391.43x = 1,019,090.79 × 206,077.25
  4. Step 4: Simplify right side
    679,391.43x = 210,011,422,408.07
  5. Step 5: Solve for x
    x = 210,011,422,408.07/679,391.43
  6. Step 6: Final answer
    x = 309,116.97

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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.