Home / 2,190,122.89-3,287,245.25-1,111,409.91

Finding the Fourth Proportional to 2,190,122.89, 3,287,245.25 and 1,111,409.91

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Solution

The fourth proportional to 2,190,122.89, 3,287,245.25 and 1,111,409.91 is: 1,668,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,122.89 : 3,287,245.25 = 1,111,409.91 : x
  2. Step 2: Convert to fraction form
    2,190,122.89/3,287,245.25 = 1,111,409.91/x
  3. Step 3: Cross multiply
    2,190,122.89x = 3,287,245.25 × 1,111,409.91
  4. Step 4: Simplify right side
    2,190,122.89x = 3,653,476,950,228.95
  5. Step 5: Solve for x
    x = 3,653,476,950,228.95/2,190,122.89
  6. Step 6: Final answer
    x = 1,668,160.71

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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.