Home / 1,085,540.60-1,628,310.90-805,604.60

Finding the Fourth Proportional to 1,085,540.60, 1,628,310.90 and 805,604.60

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Solution

The fourth proportional to 1,085,540.60, 1,628,310.90 and 805,604.60 is: 1,208,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,540.60 : 1,628,310.90 = 805,604.60 : x
  2. Step 2: Convert to fraction form
    1,085,540.60/1,628,310.90 = 805,604.60/x
  3. Step 3: Cross multiply
    1,085,540.60x = 1,628,310.90 × 805,604.60
  4. Step 4: Simplify right side
    1,085,540.60x = 1,311,774,751,270.14
  5. Step 5: Solve for x
    x = 1,311,774,751,270.14/1,085,540.60
  6. Step 6: Final answer
    x = 1,208,406.90

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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.