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Finding the Fourth Proportional to 524.67, 785.78 and 401.95

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Solution

The fourth proportional to 524.67, 785.78 and 401.95 is: 601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.67 : 785.78 = 401.95 : x
  2. Step 2: Convert to fraction form
    524.67/785.78 = 401.95/x
  3. Step 3: Cross multiply
    524.67x = 785.78 × 401.95
  4. Step 4: Simplify right side
    524.67x = 315,844.27
  5. Step 5: Solve for x
    x = 315,844.27/524.67
  6. Step 6: Final answer
    x = 601.99

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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.