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Finding the Fourth Proportional to 1,014.75, 1,522.12 and 284.34

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Solution

The fourth proportional to 1,014.75, 1,522.12 and 284.34 is: 426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.75 : 1,522.12 = 284.34 : x
  2. Step 2: Convert to fraction form
    1,014.75/1,522.12 = 284.34/x
  3. Step 3: Cross multiply
    1,014.75x = 1,522.12 × 284.34
  4. Step 4: Simplify right side
    1,014.75x = 432,799.60
  5. Step 5: Solve for x
    x = 432,799.60/1,014.75
  6. Step 6: Final answer
    x = 426.51

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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.