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Finding the Fourth Proportional to 552.40, 827.40 and 406.24

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Solution

The fourth proportional to 552.40, 827.40 and 406.24 is: 608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.40 : 827.40 = 406.24 : x
  2. Step 2: Convert to fraction form
    552.40/827.40 = 406.24/x
  3. Step 3: Cross multiply
    552.40x = 827.40 × 406.24
  4. Step 4: Simplify right side
    552.40x = 336,122.98
  5. Step 5: Solve for x
    x = 336,122.98/552.40
  6. Step 6: Final answer
    x = 608.48

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1.5x scale

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.