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Finding the Fourth Proportional to 635.45, 953.37 and 404.54

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Solution

The fourth proportional to 635.45, 953.37 and 404.54 is: 606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.45 : 953.37 = 404.54 : x
  2. Step 2: Convert to fraction form
    635.45/953.37 = 404.54/x
  3. Step 3: Cross multiply
    635.45x = 953.37 × 404.54
  4. Step 4: Simplify right side
    635.45x = 385,671.53
  5. Step 5: Solve for x
    x = 385,671.53/635.45
  6. Step 6: Final answer
    x = 606.93

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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.