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Finding the Fourth Proportional to 609.24, 841.95 and 498.54

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Solution

The fourth proportional to 609.24, 841.95 and 498.54 is: 688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.24 : 841.95 = 498.54 : x
  2. Step 2: Convert to fraction form
    609.24/841.95 = 498.54/x
  3. Step 3: Cross multiply
    609.24x = 841.95 × 498.54
  4. Step 4: Simplify right side
    609.24x = 419,745.75
  5. Step 5: Solve for x
    x = 419,745.75/609.24
  6. Step 6: Final answer
    x = 688.97

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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.