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Finding the Fourth Proportional to 552.94, 828.96 and 415.72

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Solution

The fourth proportional to 552.94, 828.96 and 415.72 is: 623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.94 : 828.96 = 415.72 : x
  2. Step 2: Convert to fraction form
    552.94/828.96 = 415.72/x
  3. Step 3: Cross multiply
    552.94x = 828.96 × 415.72
  4. Step 4: Simplify right side
    552.94x = 344,615.25
  5. Step 5: Solve for x
    x = 344,615.25/552.94
  6. Step 6: Final answer
    x = 623.24

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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.