Home / 679,738.11-1,019,540.97-206,427.57

Finding the Fourth Proportional to 679,738.11, 1,019,540.97 and 206,427.57

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Solution

The fourth proportional to 679,738.11, 1,019,540.97 and 206,427.57 is: 309,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,738.11 : 1,019,540.97 = 206,427.57 : x
  2. Step 2: Convert to fraction form
    679,738.11/1,019,540.97 = 206,427.57/x
  3. Step 3: Cross multiply
    679,738.11x = 1,019,540.97 × 206,427.57
  4. Step 4: Simplify right side
    679,738.11x = 210,461,364,952.54
  5. Step 5: Solve for x
    x = 210,461,364,952.54/679,738.11
  6. Step 6: Final answer
    x = 309,621.25

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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.