Home / 1,085,135.80-1,628,481.30-611,318.20

Finding the Fourth Proportional to 1,085,135.80, 1,628,481.30 and 611,318.20

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Solution

The fourth proportional to 1,085,135.80, 1,628,481.30 and 611,318.20 is: 917,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,135.80 : 1,628,481.30 = 611,318.20 : x
  2. Step 2: Convert to fraction form
    1,085,135.80/1,628,481.30 = 611,318.20/x
  3. Step 3: Cross multiply
    1,085,135.80x = 1,628,481.30 × 611,318.20
  4. Step 4: Simplify right side
    1,085,135.80x = 995,520,257,049.66
  5. Step 5: Solve for x
    x = 995,520,257,049.66/1,085,135.80
  6. Step 6: Final answer
    x = 917,415.37

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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.