Home / 1,305,697.20-1,958,545.80-1,211,218.80

Finding the Fourth Proportional to 1,305,697.20, 1,958,545.80 and 1,211,218.80

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Solution

The fourth proportional to 1,305,697.20, 1,958,545.80 and 1,211,218.80 is: 1,816,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,697.20 : 1,958,545.80 = 1,211,218.80 : x
  2. Step 2: Convert to fraction form
    1,305,697.20/1,958,545.80 = 1,211,218.80/x
  3. Step 3: Cross multiply
    1,305,697.20x = 1,958,545.80 × 1,211,218.80
  4. Step 4: Simplify right side
    1,305,697.20x = 2,372,227,493,621.04
  5. Step 5: Solve for x
    x = 2,372,227,493,621.04/1,305,697.20
  6. Step 6: Final answer
    x = 1,816,828.20

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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.