Home / 2,261,180.72-3,120,313.92-1,242,388.64

Finding the Fourth Proportional to 2,261,180.72, 3,120,313.92 and 1,242,388.64

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Solution

The fourth proportional to 2,261,180.72, 3,120,313.92 and 1,242,388.64 is: 1,714,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261,180.72 : 3,120,313.92 = 1,242,388.64 : x
  2. Step 2: Convert to fraction form
    2,261,180.72/3,120,313.92 = 1,242,388.64/x
  3. Step 3: Cross multiply
    2,261,180.72x = 3,120,313.92 × 1,242,388.64
  4. Step 4: Simplify right side
    2,261,180.72x = 3,876,642,567,441.87
  5. Step 5: Solve for x
    x = 3,876,642,567,441.87/2,261,180.72
  6. Step 6: Final answer
    x = 1,714,432.88

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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.