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Finding the Fourth Proportional to 633.95, 873.56 and 467.90

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Solution

The fourth proportional to 633.95, 873.56 and 467.90 is: 644.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.95 : 873.56 = 467.90 : x
  2. Step 2: Convert to fraction form
    633.95/873.56 = 467.90/x
  3. Step 3: Cross multiply
    633.95x = 873.56 × 467.90
  4. Step 4: Simplify right side
    633.95x = 408,736.38
  5. Step 5: Solve for x
    x = 408,736.38/633.95
  6. Step 6: Final answer
    x = 644.75

Related Problems

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Double scale
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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.