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Finding the Fourth Proportional to 663.36, 915.24 and 467.04

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Solution

The fourth proportional to 663.36, 915.24 and 467.04 is: 644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.36 : 915.24 = 467.04 : x
  2. Step 2: Convert to fraction form
    663.36/915.24 = 467.04/x
  3. Step 3: Cross multiply
    663.36x = 915.24 × 467.04
  4. Step 4: Simplify right side
    663.36x = 427,453.69
  5. Step 5: Solve for x
    x = 427,453.69/663.36
  6. Step 6: Final answer
    x = 644.38

Related Problems

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Half scale
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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.