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Finding the Fourth Proportional to 635.64, 876.90 and 504.84

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Solution

The fourth proportional to 635.64, 876.90 and 504.84 is: 696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.64 : 876.90 = 504.84 : x
  2. Step 2: Convert to fraction form
    635.64/876.90 = 504.84/x
  3. Step 3: Cross multiply
    635.64x = 876.90 × 504.84
  4. Step 4: Simplify right side
    635.64x = 442,694.20
  5. Step 5: Solve for x
    x = 442,694.20/635.64
  6. Step 6: Final answer
    x = 696.45

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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.