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Finding the Fourth Proportional to 524.82, 785.85 and 378.12

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Solution

The fourth proportional to 524.82, 785.85 and 378.12 is: 566.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.82 : 785.85 = 378.12 : x
  2. Step 2: Convert to fraction form
    524.82/785.85 = 378.12/x
  3. Step 3: Cross multiply
    524.82x = 785.85 × 378.12
  4. Step 4: Simplify right side
    524.82x = 297,145.60
  5. Step 5: Solve for x
    x = 297,145.60/524.82
  6. Step 6: Final answer
    x = 566.19

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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.