Home / 2,190,515.06-3,022,910.82-1,223,645.42

Finding the Fourth Proportional to 2,190,515.06, 3,022,910.82 and 1,223,645.42

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Solution

The fourth proportional to 2,190,515.06, 3,022,910.82 and 1,223,645.42 is: 1,688,630.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,515.06 : 3,022,910.82 = 1,223,645.42 : x
  2. Step 2: Convert to fraction form
    2,190,515.06/3,022,910.82 = 1,223,645.42/x
  3. Step 3: Cross multiply
    2,190,515.06x = 3,022,910.82 × 1,223,645.42
  4. Step 4: Simplify right side
    2,190,515.06x = 3,698,970,979,961.44
  5. Step 5: Solve for x
    x = 3,698,970,979,961.44/2,190,515.06
  6. Step 6: Final answer
    x = 1,688,630.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.