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Finding the Fourth Proportional to 636.54, 873.33 and 605.58

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Solution

The fourth proportional to 636.54, 873.33 and 605.58 is: 830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.54 : 873.33 = 605.58 : x
  2. Step 2: Convert to fraction form
    636.54/873.33 = 605.58/x
  3. Step 3: Cross multiply
    636.54x = 873.33 × 605.58
  4. Step 4: Simplify right side
    636.54x = 528,871.18
  5. Step 5: Solve for x
    x = 528,871.18/636.54
  6. Step 6: Final answer
    x = 830.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.