Home / 2,101,359.09-3,151,841.65-681,427.47

Finding the Fourth Proportional to 2,101,359.09, 3,151,841.65 and 681,427.47

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Solution

The fourth proportional to 2,101,359.09, 3,151,841.65 and 681,427.47 is: 1,022,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,359.09 : 3,151,841.65 = 681,427.47 : x
  2. Step 2: Convert to fraction form
    2,101,359.09/3,151,841.65 = 681,427.47/x
  3. Step 3: Cross multiply
    2,101,359.09x = 3,151,841.65 × 681,427.47
  4. Step 4: Simplify right side
    2,101,359.09x = 2,147,751,479,696.56
  5. Step 5: Solve for x
    x = 2,147,751,479,696.56/2,101,359.09
  6. Step 6: Final answer
    x = 1,022,077.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.