Home / 1,190,796.19-1,786,121.87-422,331.91

Finding the Fourth Proportional to 1,190,796.19, 1,786,121.87 and 422,331.91

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Solution

The fourth proportional to 1,190,796.19, 1,786,121.87 and 422,331.91 is: 633,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,796.19 : 1,786,121.87 = 422,331.91 : x
  2. Step 2: Convert to fraction form
    1,190,796.19/1,786,121.87 = 422,331.91/x
  3. Step 3: Cross multiply
    1,190,796.19x = 1,786,121.87 × 422,331.91
  4. Step 4: Simplify right side
    1,190,796.19x = 754,336,251,919.26
  5. Step 5: Solve for x
    x = 754,336,251,919.26/1,190,796.19
  6. Step 6: Final answer
    x = 633,472.18

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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.