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Finding the Fourth Proportional to 808,662.60, 1,213,101.90 and 276,049.80

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Solution

The fourth proportional to 808,662.60, 1,213,101.90 and 276,049.80 is: 414,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,662.60 : 1,213,101.90 = 276,049.80 : x
  2. Step 2: Convert to fraction form
    808,662.60/1,213,101.90 = 276,049.80/x
  3. Step 3: Cross multiply
    808,662.60x = 1,213,101.90 × 276,049.80
  4. Step 4: Simplify right side
    808,662.60x = 334,876,536,874.62
  5. Step 5: Solve for x
    x = 334,876,536,874.62/808,662.60
  6. Step 6: Final answer
    x = 414,111.57

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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.