Home / 2,121,621.20-3,182,431.80-858,798.80

Finding the Fourth Proportional to 2,121,621.20, 3,182,431.80 and 858,798.80

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Solution

The fourth proportional to 2,121,621.20, 3,182,431.80 and 858,798.80 is: 1,288,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,621.20 : 3,182,431.80 = 858,798.80 : x
  2. Step 2: Convert to fraction form
    2,121,621.20/3,182,431.80 = 858,798.80/x
  3. Step 3: Cross multiply
    2,121,621.20x = 3,182,431.80 × 858,798.80
  4. Step 4: Simplify right side
    2,121,621.20x = 2,733,068,610,921.84
  5. Step 5: Solve for x
    x = 2,733,068,610,921.84/2,121,621.20
  6. Step 6: Final answer
    x = 1,288,198.20

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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.