Home / 1,305,704.20-1,958,556.30-1,211,225.80

Finding the Fourth Proportional to 1,305,704.20, 1,958,556.30 and 1,211,225.80

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Solution

The fourth proportional to 1,305,704.20, 1,958,556.30 and 1,211,225.80 is: 1,816,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,704.20 : 1,958,556.30 = 1,211,225.80 : x
  2. Step 2: Convert to fraction form
    1,305,704.20/1,958,556.30 = 1,211,225.80/x
  3. Step 3: Cross multiply
    1,305,704.20x = 1,958,556.30 × 1,211,225.80
  4. Step 4: Simplify right side
    1,305,704.20x = 2,372,253,921,312.54
  5. Step 5: Solve for x
    x = 2,372,253,921,312.54/1,305,704.20
  6. Step 6: Final answer
    x = 1,816,838.70

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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.