Home / 791,219.82-1,187,016.42-258,738.78

Finding the Fourth Proportional to 791,219.82, 1,187,016.42 and 258,738.78

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Solution

The fourth proportional to 791,219.82, 1,187,016.42 and 258,738.78 is: 388,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,219.82 : 1,187,016.42 = 258,738.78 : x
  2. Step 2: Convert to fraction form
    791,219.82/1,187,016.42 = 258,738.78/x
  3. Step 3: Cross multiply
    791,219.82x = 1,187,016.42 × 258,738.78
  4. Step 4: Simplify right side
    791,219.82x = 307,127,180,350.77
  5. Step 5: Solve for x
    x = 307,127,180,350.77/791,219.82
  6. Step 6: Final answer
    x = 388,169.22

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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.