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Finding the Fourth Proportional to 606,930.80, 910,914.60 and 270,489.20

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Solution

The fourth proportional to 606,930.80, 910,914.60 and 270,489.20 is: 405,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,930.80 : 910,914.60 = 270,489.20 : x
  2. Step 2: Convert to fraction form
    606,930.80/910,914.60 = 270,489.20/x
  3. Step 3: Cross multiply
    606,930.80x = 910,914.60 × 270,489.20
  4. Step 4: Simplify right side
    606,930.80x = 246,392,561,422.32
  5. Step 5: Solve for x
    x = 246,392,561,422.32/606,930.80
  6. Step 6: Final answer
    x = 405,964.83

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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.