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Finding the Fourth Proportional to 524.16, 786.24 and 443.52

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Solution

The fourth proportional to 524.16, 786.24 and 443.52 is: 665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.16 : 786.24 = 443.52 : x
  2. Step 2: Convert to fraction form
    524.16/786.24 = 443.52/x
  3. Step 3: Cross multiply
    524.16x = 786.24 × 443.52
  4. Step 4: Simplify right side
    524.16x = 348,713.16
  5. Step 5: Solve for x
    x = 348,713.16/524.16
  6. Step 6: Final answer
    x = 665.28

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Similar ratio
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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.