Home / 791,859.24-1,187,538.84-259,257.78

Finding the Fourth Proportional to 791,859.24, 1,187,538.84 and 259,257.78

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Solution

The fourth proportional to 791,859.24, 1,187,538.84 and 259,257.78 is: 388,804.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,859.24 : 1,187,538.84 = 259,257.78 : x
  2. Step 2: Convert to fraction form
    791,859.24/1,187,538.84 = 259,257.78/x
  3. Step 3: Cross multiply
    791,859.24x = 1,187,538.84 × 259,257.78
  4. Step 4: Simplify right side
    791,859.24x = 307,878,683,322.18
  5. Step 5: Solve for x
    x = 307,878,683,322.18/791,859.24
  6. Step 6: Final answer
    x = 388,804.81

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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.