Home / 1,295,196.80-1,940,721.60-821,033.60

Finding the Fourth Proportional to 1,295,196.80, 1,940,721.60 and 821,033.60

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Solution

The fourth proportional to 1,295,196.80, 1,940,721.60 and 821,033.60 is: 1,230,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,196.80 : 1,940,721.60 = 821,033.60 : x
  2. Step 2: Convert to fraction form
    1,295,196.80/1,940,721.60 = 821,033.60/x
  3. Step 3: Cross multiply
    1,295,196.80x = 1,940,721.60 × 821,033.60
  4. Step 4: Simplify right side
    1,295,196.80x = 1,593,397,641,845.76
  5. Step 5: Solve for x
    x = 1,593,397,641,845.76/1,295,196.80
  6. Step 6: Final answer
    x = 1,230,235.93

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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.