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Finding the Fourth Proportional to 787.59, 1,179.99 and 604.44

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Solution

The fourth proportional to 787.59, 1,179.99 and 604.44 is: 905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    787.59 : 1,179.99 = 604.44 : x
  2. Step 2: Convert to fraction form
    787.59/1,179.99 = 604.44/x
  3. Step 3: Cross multiply
    787.59x = 1,179.99 × 604.44
  4. Step 4: Simplify right side
    787.59x = 713,233.16
  5. Step 5: Solve for x
    x = 713,233.16/787.59
  6. Step 6: Final answer
    x = 905.59

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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.