Home / 1,861,190.58-2,567,788.92-1,216,987.86

Finding the Fourth Proportional to 1,861,190.58, 2,567,788.92 and 1,216,987.86

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Solution

The fourth proportional to 1,861,190.58, 2,567,788.92 and 1,216,987.86 is: 1,679,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,190.58 : 2,567,788.92 = 1,216,987.86 : x
  2. Step 2: Convert to fraction form
    1,861,190.58/2,567,788.92 = 1,216,987.86/x
  3. Step 3: Cross multiply
    1,861,190.58x = 2,567,788.92 × 1,216,987.86
  4. Step 4: Simplify right side
    1,861,190.58x = 3,124,967,942,682.51
  5. Step 5: Solve for x
    x = 3,124,967,942,682.51/1,861,190.58
  6. Step 6: Final answer
    x = 1,679,015.56

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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.