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Finding the Fourth Proportional to 911,191.96, 1,366,551.42 and 271,345.96

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Solution

The fourth proportional to 911,191.96, 1,366,551.42 and 271,345.96 is: 406,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,191.96 : 1,366,551.42 = 271,345.96 : x
  2. Step 2: Convert to fraction form
    911,191.96/1,366,551.42 = 271,345.96/x
  3. Step 3: Cross multiply
    911,191.96x = 1,366,551.42 × 271,345.96
  4. Step 4: Simplify right side
    911,191.96x = 370,808,206,949.26
  5. Step 5: Solve for x
    x = 370,808,206,949.26/911,191.96
  6. Step 6: Final answer
    x = 406,948.51

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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.