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Finding the Fourth Proportional to 608.52, 840.29 and 484.73

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Solution

The fourth proportional to 608.52, 840.29 and 484.73 is: 669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.52 : 840.29 = 484.73 : x
  2. Step 2: Convert to fraction form
    608.52/840.29 = 484.73/x
  3. Step 3: Cross multiply
    608.52x = 840.29 × 484.73
  4. Step 4: Simplify right side
    608.52x = 407,310.39
  5. Step 5: Solve for x
    x = 407,310.39/608.52
  6. Step 6: Final answer
    x = 669.35

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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.