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Finding the Fourth Proportional to 524.99, 787.76 and 401.52

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Solution

The fourth proportional to 524.99, 787.76 and 401.52 is: 602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.99 : 787.76 = 401.52 : x
  2. Step 2: Convert to fraction form
    524.99/787.76 = 401.52/x
  3. Step 3: Cross multiply
    524.99x = 787.76 × 401.52
  4. Step 4: Simplify right side
    524.99x = 316,299.68
  5. Step 5: Solve for x
    x = 316,299.68/524.99
  6. Step 6: Final answer
    x = 602.48

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Double scale
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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.