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Finding the Fourth Proportional to 635.60, 948.26 and 554.60

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Solution

The fourth proportional to 635.60, 948.26 and 554.60 is: 827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.60 : 948.26 = 554.60 : x
  2. Step 2: Convert to fraction form
    635.60/948.26 = 554.60/x
  3. Step 3: Cross multiply
    635.60x = 948.26 × 554.60
  4. Step 4: Simplify right side
    635.60x = 525,905.00
  5. Step 5: Solve for x
    x = 525,905.00/635.60
  6. Step 6: Final answer
    x = 827.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.