Home / 1,086,438.70-1,629,010.05-666,016.30

Finding the Fourth Proportional to 1,086,438.70, 1,629,010.05 and 666,016.30

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Solution

The fourth proportional to 1,086,438.70, 1,629,010.05 and 666,016.30 is: 998,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,438.70 : 1,629,010.05 = 666,016.30 : x
  2. Step 2: Convert to fraction form
    1,086,438.70/1,629,010.05 = 666,016.30/x
  3. Step 3: Cross multiply
    1,086,438.70x = 1,629,010.05 × 666,016.30
  4. Step 4: Simplify right side
    1,086,438.70x = 1,084,947,246,163.82
  5. Step 5: Solve for x
    x = 1,084,947,246,163.82/1,086,438.70
  6. Step 6: Final answer
    x = 998,627.21

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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.