Home / 1,235,028.25-1,850,857.78-755,422.80

Finding the Fourth Proportional to 1,235,028.25, 1,850,857.78 and 755,422.80

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Solution

The fourth proportional to 1,235,028.25, 1,850,857.78 and 755,422.80 is: 1,132,103.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,028.25 : 1,850,857.78 = 755,422.80 : x
  2. Step 2: Convert to fraction form
    1,235,028.25/1,850,857.78 = 755,422.80/x
  3. Step 3: Cross multiply
    1,235,028.25x = 1,850,857.78 × 755,422.80
  4. Step 4: Simplify right side
    1,235,028.25x = 1,398,180,166,569.38
  5. Step 5: Solve for x
    x = 1,398,180,166,569.38/1,235,028.25
  6. Step 6: Final answer
    x = 1,132,103.79

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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.