Home / 1,815,418.80-2,723,128.20-485,722.80

Finding the Fourth Proportional to 1,815,418.80, 2,723,128.20 and 485,722.80

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Solution

The fourth proportional to 1,815,418.80, 2,723,128.20 and 485,722.80 is: 728,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,418.80 : 2,723,128.20 = 485,722.80 : x
  2. Step 2: Convert to fraction form
    1,815,418.80/2,723,128.20 = 485,722.80/x
  3. Step 3: Cross multiply
    1,815,418.80x = 2,723,128.20 × 485,722.80
  4. Step 4: Simplify right side
    1,815,418.80x = 1,322,685,454,062.96
  5. Step 5: Solve for x
    x = 1,322,685,454,062.96/1,815,418.80
  6. Step 6: Final answer
    x = 728,584.20

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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.