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Finding the Fourth Proportional to 1,084.72, 1,627.19 and 304.73

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Solution

The fourth proportional to 1,084.72, 1,627.19 and 304.73 is: 457.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.72 : 1,627.19 = 304.73 : x
  2. Step 2: Convert to fraction form
    1,084.72/1,627.19 = 304.73/x
  3. Step 3: Cross multiply
    1,084.72x = 1,627.19 × 304.73
  4. Step 4: Simplify right side
    1,084.72x = 495,845.47
  5. Step 5: Solve for x
    x = 495,845.47/1,084.72
  6. Step 6: Final answer
    x = 457.12

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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.