Home / 858,947.58-1,288,419.96-219,251.22

Finding the Fourth Proportional to 858,947.58, 1,288,419.96 and 219,251.22

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Solution

The fourth proportional to 858,947.58, 1,288,419.96 and 219,251.22 is: 328,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,947.58 : 1,288,419.96 = 219,251.22 : x
  2. Step 2: Convert to fraction form
    858,947.58/1,288,419.96 = 219,251.22/x
  3. Step 3: Cross multiply
    858,947.58x = 1,288,419.96 × 219,251.22
  4. Step 4: Simplify right side
    858,947.58x = 282,487,644,092.97
  5. Step 5: Solve for x
    x = 282,487,644,092.97/858,947.58
  6. Step 6: Final answer
    x = 328,876.47

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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.