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Finding the Fourth Proportional to 524.58, 786.86 and 396.24

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Solution

The fourth proportional to 524.58, 786.86 and 396.24 is: 594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.58 : 786.86 = 396.24 : x
  2. Step 2: Convert to fraction form
    524.58/786.86 = 396.24/x
  3. Step 3: Cross multiply
    524.58x = 786.86 × 396.24
  4. Step 4: Simplify right side
    524.58x = 311,788.62
  5. Step 5: Solve for x
    x = 311,788.62/524.58
  6. Step 6: Final answer
    x = 594.36

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Double scale
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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.