Home / 1,084,221.56-1,497,481.08-721,015.40

Finding the Fourth Proportional to 1,084,221.56, 1,497,481.08 and 721,015.40

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Solution

The fourth proportional to 1,084,221.56, 1,497,481.08 and 721,015.40 is: 995,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084,221.56 : 1,497,481.08 = 721,015.40 : x
  2. Step 2: Convert to fraction form
    1,084,221.56/1,497,481.08 = 721,015.40/x
  3. Step 3: Cross multiply
    1,084,221.56x = 1,497,481.08 × 721,015.40
  4. Step 4: Simplify right side
    1,084,221.56x = 1,079,706,919,888.63
  5. Step 5: Solve for x
    x = 1,079,706,919,888.63/1,084,221.56
  6. Step 6: Final answer
    x = 995,836.05

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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.