Home / 2,106,785.14-2,907,051.78-1,279,428.46

Finding the Fourth Proportional to 2,106,785.14, 2,907,051.78 and 1,279,428.46

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Solution

The fourth proportional to 2,106,785.14, 2,907,051.78 and 1,279,428.46 is: 1,765,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,785.14 : 2,907,051.78 = 1,279,428.46 : x
  2. Step 2: Convert to fraction form
    2,106,785.14/2,907,051.78 = 1,279,428.46/x
  3. Step 3: Cross multiply
    2,106,785.14x = 2,907,051.78 × 1,279,428.46
  4. Step 4: Simplify right side
    2,106,785.14x = 3,719,364,782,025.66
  5. Step 5: Solve for x
    x = 3,719,364,782,025.66/2,106,785.14
  6. Step 6: Final answer
    x = 1,765,421.97

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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.