Home / 790,414.26-1,185,810-257,936.28

Finding the Fourth Proportional to 790,414.26, 1,185,810 and 257,936.28

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Solution

The fourth proportional to 790,414.26, 1,185,810 and 257,936.28 is: 386,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,414.26 : 1,185,810 = 257,936.28 : x
  2. Step 2: Convert to fraction form
    790,414.26/1,185,810 = 257,936.28/x
  3. Step 3: Cross multiply
    790,414.26x = 1,185,810 × 257,936.28
  4. Step 4: Simplify right side
    790,414.26x = 305,863,420,186.80
  5. Step 5: Solve for x
    x = 305,863,420,186.80/790,414.26
  6. Step 6: Final answer
    x = 386,965.97

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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.