Home / 1,098,481.43-1,647,801.09-378,812.77

Finding the Fourth Proportional to 1,098,481.43, 1,647,801.09 and 378,812.77

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Solution

The fourth proportional to 1,098,481.43, 1,647,801.09 and 378,812.77 is: 568,246.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,481.43 : 1,647,801.09 = 378,812.77 : x
  2. Step 2: Convert to fraction form
    1,098,481.43/1,647,801.09 = 378,812.77/x
  3. Step 3: Cross multiply
    1,098,481.43x = 1,647,801.09 × 378,812.77
  4. Step 4: Simplify right side
    1,098,481.43x = 624,208,091,192.42
  5. Step 5: Solve for x
    x = 624,208,091,192.42/1,098,481.43
  6. Step 6: Final answer
    x = 568,246.37

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Double scale
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1.5x scale

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.