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Finding the Fourth Proportional to 894.30, 1,342.17 and 483.72

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Solution

The fourth proportional to 894.30, 1,342.17 and 483.72 is: 725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.30 : 1,342.17 = 483.72 : x
  2. Step 2: Convert to fraction form
    894.30/1,342.17 = 483.72/x
  3. Step 3: Cross multiply
    894.30x = 1,342.17 × 483.72
  4. Step 4: Simplify right side
    894.30x = 649,234.47
  5. Step 5: Solve for x
    x = 649,234.47/894.30
  6. Step 6: Final answer
    x = 725.97

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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.