Home / 902,195.20-1,245,162-520,147.36

Finding the Fourth Proportional to 902,195.20, 1,245,162 and 520,147.36

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Solution

The fourth proportional to 902,195.20, 1,245,162 and 520,147.36 is: 717,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,195.20 : 1,245,162 = 520,147.36 : x
  2. Step 2: Convert to fraction form
    902,195.20/1,245,162 = 520,147.36/x
  3. Step 3: Cross multiply
    902,195.20x = 1,245,162 × 520,147.36
  4. Step 4: Simplify right side
    902,195.20x = 647,667,727,072.32
  5. Step 5: Solve for x
    x = 647,667,727,072.32/902,195.20
  6. Step 6: Final answer
    x = 717,879.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.