Home / 859,115.76-1,288,573.56-228,078.60

Finding the Fourth Proportional to 859,115.76, 1,288,573.56 and 228,078.60

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Solution

The fourth proportional to 859,115.76, 1,288,573.56 and 228,078.60 is: 342,091.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,115.76 : 1,288,573.56 = 228,078.60 : x
  2. Step 2: Convert to fraction form
    859,115.76/1,288,573.56 = 228,078.60/x
  3. Step 3: Cross multiply
    859,115.76x = 1,288,573.56 × 228,078.60
  4. Step 4: Simplify right side
    859,115.76x = 293,896,053,561.82
  5. Step 5: Solve for x
    x = 293,896,053,561.82/859,115.76
  6. Step 6: Final answer
    x = 342,091.33

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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.