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Finding the Fourth Proportional to 936,808, 1,405,250.88 and 271,960

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Solution

The fourth proportional to 936,808, 1,405,250.88 and 271,960 is: 407,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,808 : 1,405,250.88 = 271,960 : x
  2. Step 2: Convert to fraction form
    936,808/1,405,250.88 = 271,960/x
  3. Step 3: Cross multiply
    936,808x = 1,405,250.88 × 271,960
  4. Step 4: Simplify right side
    936,808x = 382,172,029,324.80
  5. Step 5: Solve for x
    x = 382,172,029,324.80/936,808
  6. Step 6: Final answer
    x = 407,951.29

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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.