Home / 3,085,778.87-4,629,407.31-1,287,662.09

Finding the Fourth Proportional to 3,085,778.87, 4,629,407.31 and 1,287,662.09

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Solution

The fourth proportional to 3,085,778.87, 4,629,407.31 and 1,287,662.09 is: 1,931,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085,778.87 : 4,629,407.31 = 1,287,662.09 : x
  2. Step 2: Convert to fraction form
    3,085,778.87/4,629,407.31 = 1,287,662.09/x
  3. Step 3: Cross multiply
    3,085,778.87x = 4,629,407.31 × 1,287,662.09
  4. Step 4: Simplify right side
    3,085,778.87x = 5,961,112,292,255.88
  5. Step 5: Solve for x
    x = 5,961,112,292,255.88/3,085,778.87
  6. Step 6: Final answer
    x = 1,931,801.51

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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.