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Finding the Fourth Proportional to 626.05, 863.60 and 508.16

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Solution

The fourth proportional to 626.05, 863.60 and 508.16 is: 700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.05 : 863.60 = 508.16 : x
  2. Step 2: Convert to fraction form
    626.05/863.60 = 508.16/x
  3. Step 3: Cross multiply
    626.05x = 863.60 × 508.16
  4. Step 4: Simplify right side
    626.05x = 438,843.93
  5. Step 5: Solve for x
    x = 438,843.93/626.05
  6. Step 6: Final answer
    x = 700.98

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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.