Home / 1,279,427.60-1,917,391.80-851,747.60

Finding the Fourth Proportional to 1,279,427.60, 1,917,391.80 and 851,747.60

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Solution

The fourth proportional to 1,279,427.60, 1,917,391.80 and 851,747.60 is: 1,276,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,427.60 : 1,917,391.80 = 851,747.60 : x
  2. Step 2: Convert to fraction form
    1,279,427.60/1,917,391.80 = 851,747.60/x
  3. Step 3: Cross multiply
    1,279,427.60x = 1,917,391.80 × 851,747.60
  4. Step 4: Simplify right side
    1,279,427.60x = 1,633,133,863,909.68
  5. Step 5: Solve for x
    x = 1,633,133,863,909.68/1,279,427.60
  6. Step 6: Final answer
    x = 1,276,456.65

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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.