Home / 1,269,186.80-1,903,786.76-427,745.84

Finding the Fourth Proportional to 1,269,186.80, 1,903,786.76 and 427,745.84

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Solution

The fourth proportional to 1,269,186.80, 1,903,786.76 and 427,745.84 is: 641,620.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,186.80 : 1,903,786.76 = 427,745.84 : x
  2. Step 2: Convert to fraction form
    1,269,186.80/1,903,786.76 = 427,745.84/x
  3. Step 3: Cross multiply
    1,269,186.80x = 1,903,786.76 × 427,745.84
  4. Step 4: Simplify right side
    1,269,186.80x = 814,336,858,387.51
  5. Step 5: Solve for x
    x = 814,336,858,387.51/1,269,186.80
  6. Step 6: Final answer
    x = 641,620.97

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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.