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Finding the Fourth Proportional to 627,636.67, 941,446.80 and 154,326.13

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Solution

The fourth proportional to 627,636.67, 941,446.80 and 154,326.13 is: 231,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,636.67 : 941,446.80 = 154,326.13 : x
  2. Step 2: Convert to fraction form
    627,636.67/941,446.80 = 154,326.13/x
  3. Step 3: Cross multiply
    627,636.67x = 941,446.80 × 154,326.13
  4. Step 4: Simplify right side
    627,636.67x = 145,289,838,891.27
  5. Step 5: Solve for x
    x = 145,289,838,891.27/627,636.67
  6. Step 6: Final answer
    x = 231,487.17

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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.