Home / 1,086,421.20-1,628,983.80-665,998.80

Finding the Fourth Proportional to 1,086,421.20, 1,628,983.80 and 665,998.80

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Solution

The fourth proportional to 1,086,421.20, 1,628,983.80 and 665,998.80 is: 998,600.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,421.20 : 1,628,983.80 = 665,998.80 : x
  2. Step 2: Convert to fraction form
    1,086,421.20/1,628,983.80 = 665,998.80/x
  3. Step 3: Cross multiply
    1,086,421.20x = 1,628,983.80 × 665,998.80
  4. Step 4: Simplify right side
    1,086,421.20x = 1,084,901,256,019.44
  5. Step 5: Solve for x
    x = 1,084,901,256,019.44/1,086,421.20
  6. Step 6: Final answer
    x = 998,600.96

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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.