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Finding the Fourth Proportional to 1,179.35, 1,767.73 and 630.17

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Solution

The fourth proportional to 1,179.35, 1,767.73 and 630.17 is: 944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.35 : 1,767.73 = 630.17 : x
  2. Step 2: Convert to fraction form
    1,179.35/1,767.73 = 630.17/x
  3. Step 3: Cross multiply
    1,179.35x = 1,767.73 × 630.17
  4. Step 4: Simplify right side
    1,179.35x = 1,113,970.41
  5. Step 5: Solve for x
    x = 1,113,970.41/1,179.35
  6. Step 6: Final answer
    x = 944.56

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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.