Home / 1,137,815.80-1,706,067.60-427,915.60

Finding the Fourth Proportional to 1,137,815.80, 1,706,067.60 and 427,915.60

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Solution

The fourth proportional to 1,137,815.80, 1,706,067.60 and 427,915.60 is: 641,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,815.80 : 1,706,067.60 = 427,915.60 : x
  2. Step 2: Convert to fraction form
    1,137,815.80/1,706,067.60 = 427,915.60/x
  3. Step 3: Cross multiply
    1,137,815.80x = 1,706,067.60 × 427,915.60
  4. Step 4: Simplify right side
    1,137,815.80x = 730,052,940,694.56
  5. Step 5: Solve for x
    x = 730,052,940,694.56/1,137,815.80
  6. Step 6: Final answer
    x = 641,626.65

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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.