Home / 862,128.39-1,293,192.68-263,092.68

Finding the Fourth Proportional to 862,128.39, 1,293,192.68 and 263,092.68

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Solution

The fourth proportional to 862,128.39, 1,293,192.68 and 263,092.68 is: 394,639.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,128.39 : 1,293,192.68 = 263,092.68 : x
  2. Step 2: Convert to fraction form
    862,128.39/1,293,192.68 = 263,092.68/x
  3. Step 3: Cross multiply
    862,128.39x = 1,293,192.68 × 263,092.68
  4. Step 4: Simplify right side
    862,128.39x = 340,229,526,622.12
  5. Step 5: Solve for x
    x = 340,229,526,622.12/862,128.39
  6. Step 6: Final answer
    x = 394,639.05

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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.