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Finding the Fourth Proportional to 524.46, 788.40 and 486.12

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Solution

The fourth proportional to 524.46, 788.40 and 486.12 is: 730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.46 : 788.40 = 486.12 : x
  2. Step 2: Convert to fraction form
    524.46/788.40 = 486.12/x
  3. Step 3: Cross multiply
    524.46x = 788.40 × 486.12
  4. Step 4: Simplify right side
    524.46x = 383,257.01
  5. Step 5: Solve for x
    x = 383,257.01/524.46
  6. Step 6: Final answer
    x = 730.76

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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.