Home / 791,860.24-1,187,540.34-259,258.78

Finding the Fourth Proportional to 791,860.24, 1,187,540.34 and 259,258.78

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Solution

The fourth proportional to 791,860.24, 1,187,540.34 and 259,258.78 is: 388,806.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,860.24 : 1,187,540.34 = 259,258.78 : x
  2. Step 2: Convert to fraction form
    791,860.24/1,187,540.34 = 259,258.78/x
  3. Step 3: Cross multiply
    791,860.24x = 1,187,540.34 × 259,258.78
  4. Step 4: Simplify right side
    791,860.24x = 307,880,259,749.19
  5. Step 5: Solve for x
    x = 307,880,259,749.19/791,860.24
  6. Step 6: Final answer
    x = 388,806.31

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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.