Home / 1,179,836.66-1,628,299.44-721,219.68

Finding the Fourth Proportional to 1,179,836.66, 1,628,299.44 and 721,219.68

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Solution

The fourth proportional to 1,179,836.66, 1,628,299.44 and 721,219.68 is: 995,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,836.66 : 1,628,299.44 = 721,219.68 : x
  2. Step 2: Convert to fraction form
    1,179,836.66/1,628,299.44 = 721,219.68/x
  3. Step 3: Cross multiply
    1,179,836.66x = 1,628,299.44 × 721,219.68
  4. Step 4: Simplify right side
    1,179,836.66x = 1,174,361,601,060.98
  5. Step 5: Solve for x
    x = 1,174,361,601,060.98/1,179,836.66
  6. Step 6: Final answer
    x = 995,359.48

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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.