Home / 1,098,997.35-1,515,836.88-685,742.19

Finding the Fourth Proportional to 1,098,997.35, 1,515,836.88 and 685,742.19

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Solution

The fourth proportional to 1,098,997.35, 1,515,836.88 and 685,742.19 is: 945,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,997.35 : 1,515,836.88 = 685,742.19 : x
  2. Step 2: Convert to fraction form
    1,098,997.35/1,515,836.88 = 685,742.19/x
  3. Step 3: Cross multiply
    1,098,997.35x = 1,515,836.88 × 685,742.19
  4. Step 4: Simplify right side
    1,098,997.35x = 1,039,473,301,773.97
  5. Step 5: Solve for x
    x = 1,039,473,301,773.97/1,098,997.35
  6. Step 6: Final answer
    x = 945,837.86

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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.