Home / 1,086,423.20-1,628,986.80-666,000.80

Finding the Fourth Proportional to 1,086,423.20, 1,628,986.80 and 666,000.80

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Solution

The fourth proportional to 1,086,423.20, 1,628,986.80 and 666,000.80 is: 998,603.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,423.20 : 1,628,986.80 = 666,000.80 : x
  2. Step 2: Convert to fraction form
    1,086,423.20/1,628,986.80 = 666,000.80/x
  3. Step 3: Cross multiply
    1,086,423.20x = 1,628,986.80 × 666,000.80
  4. Step 4: Simplify right side
    1,086,423.20x = 1,084,906,511,989.44
  5. Step 5: Solve for x
    x = 1,084,906,511,989.44/1,086,423.20
  6. Step 6: Final answer
    x = 998,603.96

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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.