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Finding the Fourth Proportional to 580,947.20, 870,772.80 and 225,843.20

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Solution

The fourth proportional to 580,947.20, 870,772.80 and 225,843.20 is: 338,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,947.20 : 870,772.80 = 225,843.20 : x
  2. Step 2: Convert to fraction form
    580,947.20/870,772.80 = 225,843.20/x
  3. Step 3: Cross multiply
    580,947.20x = 870,772.80 × 225,843.20
  4. Step 4: Simplify right side
    580,947.20x = 196,658,115,624.96
  5. Step 5: Solve for x
    x = 196,658,115,624.96/580,947.20
  6. Step 6: Final answer
    x = 338,512.89

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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.