Home / 862,128.52-1,293,192.80-263,092.81

Finding the Fourth Proportional to 862,128.52, 1,293,192.80 and 263,092.81

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Solution

The fourth proportional to 862,128.52, 1,293,192.80 and 263,092.81 is: 394,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,128.52 : 1,293,192.80 = 263,092.81 : x
  2. Step 2: Convert to fraction form
    862,128.52/1,293,192.80 = 263,092.81/x
  3. Step 3: Cross multiply
    862,128.52x = 1,293,192.80 × 263,092.81
  4. Step 4: Simplify right side
    862,128.52x = 340,229,727,623.77
  5. Step 5: Solve for x
    x = 340,229,727,623.77/862,128.52
  6. Step 6: Final answer
    x = 394,639.22

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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.