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Finding the Fourth Proportional to 636.65, 953.33 and 500.39

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Solution

The fourth proportional to 636.65, 953.33 and 500.39 is: 749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.65 : 953.33 = 500.39 : x
  2. Step 2: Convert to fraction form
    636.65/953.33 = 500.39/x
  3. Step 3: Cross multiply
    636.65x = 953.33 × 500.39
  4. Step 4: Simplify right side
    636.65x = 477,029.53
  5. Step 5: Solve for x
    x = 477,029.53/636.65
  6. Step 6: Final answer
    x = 749.29

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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.