Home / 800,121.66-1,200,301.86-294,643.80

Finding the Fourth Proportional to 800,121.66, 1,200,301.86 and 294,643.80

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Solution

The fourth proportional to 800,121.66, 1,200,301.86 and 294,643.80 is: 442,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,121.66 : 1,200,301.86 = 294,643.80 : x
  2. Step 2: Convert to fraction form
    800,121.66/1,200,301.86 = 294,643.80/x
  3. Step 3: Cross multiply
    800,121.66x = 1,200,301.86 × 294,643.80
  4. Step 4: Simplify right side
    800,121.66x = 353,661,501,177.47
  5. Step 5: Solve for x
    x = 353,661,501,177.47/800,121.66
  6. Step 6: Final answer
    x = 442,009.66

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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.