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Finding the Fourth Proportional to 814.18, 1,123.57 and 441.17

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Solution

The fourth proportional to 814.18, 1,123.57 and 441.17 is: 608.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.18 : 1,123.57 = 441.17 : x
  2. Step 2: Convert to fraction form
    814.18/1,123.57 = 441.17/x
  3. Step 3: Cross multiply
    814.18x = 1,123.57 × 441.17
  4. Step 4: Simplify right side
    814.18x = 495,685.38
  5. Step 5: Solve for x
    x = 495,685.38/814.18
  6. Step 6: Final answer
    x = 608.82

Related Problems

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Half scale
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Double scale
Find fourth proportional to 815.18, 1,124.95 and 442.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.