Home / 1,086,442.20-1,629,015.30-666,019.80

Finding the Fourth Proportional to 1,086,442.20, 1,629,015.30 and 666,019.80

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Solution

The fourth proportional to 1,086,442.20, 1,629,015.30 and 666,019.80 is: 998,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,442.20 : 1,629,015.30 = 666,019.80 : x
  2. Step 2: Convert to fraction form
    1,086,442.20/1,629,015.30 = 666,019.80/x
  3. Step 3: Cross multiply
    1,086,442.20x = 1,629,015.30 × 666,019.80
  4. Step 4: Simplify right side
    1,086,442.20x = 1,084,956,444,302.94
  5. Step 5: Solve for x
    x = 1,084,956,444,302.94/1,086,442.20
  6. Step 6: Final answer
    x = 998,632.46

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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.