Home / 2,239,917.14-3,091,088.74-1,221,321.90

Finding the Fourth Proportional to 2,239,917.14, 3,091,088.74 and 1,221,321.90

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Solution

The fourth proportional to 2,239,917.14, 3,091,088.74 and 1,221,321.90 is: 1,685,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239,917.14 : 3,091,088.74 = 1,221,321.90 : x
  2. Step 2: Convert to fraction form
    2,239,917.14/3,091,088.74 = 1,221,321.90/x
  3. Step 3: Cross multiply
    2,239,917.14x = 3,091,088.74 × 1,221,321.90
  4. Step 4: Simplify right side
    2,239,917.14x = 3,775,214,373,005.41
  5. Step 5: Solve for x
    x = 3,775,214,373,005.41/2,239,917.14
  6. Step 6: Final answer
    x = 1,685,425.91

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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.