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Finding the Fourth Proportional to 883.49, 1,325.18 and 396.38

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Solution

The fourth proportional to 883.49, 1,325.18 and 396.38 is: 594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.49 : 1,325.18 = 396.38 : x
  2. Step 2: Convert to fraction form
    883.49/1,325.18 = 396.38/x
  3. Step 3: Cross multiply
    883.49x = 1,325.18 × 396.38
  4. Step 4: Simplify right side
    883.49x = 525,274.85
  5. Step 5: Solve for x
    x = 525,274.85/883.49
  6. Step 6: Final answer
    x = 594.55

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Double scale
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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.