Home / 1,613,129.78-2,419,694.70-491,198.78

Finding the Fourth Proportional to 1,613,129.78, 2,419,694.70 and 491,198.78

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Solution

The fourth proportional to 1,613,129.78, 2,419,694.70 and 491,198.78 is: 736,798.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,129.78 : 2,419,694.70 = 491,198.78 : x
  2. Step 2: Convert to fraction form
    1,613,129.78/2,419,694.70 = 491,198.78/x
  3. Step 3: Cross multiply
    1,613,129.78x = 2,419,694.70 × 491,198.78
  4. Step 4: Simplify right side
    1,613,129.78x = 1,188,551,084,612.47
  5. Step 5: Solve for x
    x = 1,188,551,084,612.47/1,613,129.78
  6. Step 6: Final answer
    x = 736,798.18

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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.