Home / 2,290,879.20-3,161,663.96-1,310,908.80

Finding the Fourth Proportional to 2,290,879.20, 3,161,663.96 and 1,310,908.80

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Solution

The fourth proportional to 2,290,879.20, 3,161,663.96 and 1,310,908.80 is: 1,809,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290,879.20 : 3,161,663.96 = 1,310,908.80 : x
  2. Step 2: Convert to fraction form
    2,290,879.20/3,161,663.96 = 1,310,908.80/x
  3. Step 3: Cross multiply
    2,290,879.20x = 3,161,663.96 × 1,310,908.80
  4. Step 4: Simplify right side
    2,290,879.20x = 4,144,653,107,806.85
  5. Step 5: Solve for x
    x = 4,144,653,107,806.85/2,290,879.20
  6. Step 6: Final answer
    x = 1,809,197.58

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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.