Home / 1,242,122.68-1,714,016.19-718,742.83

Finding the Fourth Proportional to 1,242,122.68, 1,714,016.19 and 718,742.83

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Solution

The fourth proportional to 1,242,122.68, 1,714,016.19 and 718,742.83 is: 991,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,122.68 : 1,714,016.19 = 718,742.83 : x
  2. Step 2: Convert to fraction form
    1,242,122.68/1,714,016.19 = 718,742.83/x
  3. Step 3: Cross multiply
    1,242,122.68x = 1,714,016.19 × 718,742.83
  4. Step 4: Simplify right side
    1,242,122.68x = 1,231,936,842,262.88
  5. Step 5: Solve for x
    x = 1,231,936,842,262.88/1,242,122.68
  6. Step 6: Final answer
    x = 991,799.65

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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.