Home / 1,188,004.80-1,781,661.60-655,780.80

Finding the Fourth Proportional to 1,188,004.80, 1,781,661.60 and 655,780.80

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Solution

The fourth proportional to 1,188,004.80, 1,781,661.60 and 655,780.80 is: 983,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,004.80 : 1,781,661.60 = 655,780.80 : x
  2. Step 2: Convert to fraction form
    1,188,004.80/1,781,661.60 = 655,780.80/x
  3. Step 3: Cross multiply
    1,188,004.80x = 1,781,661.60 × 655,780.80
  4. Step 4: Simplify right side
    1,188,004.80x = 1,168,379,469,377.28
  5. Step 5: Solve for x
    x = 1,168,379,469,377.28/1,188,004.80
  6. Step 6: Final answer
    x = 983,480.43

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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.