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Finding the Fourth Proportional to 611.83, 844.55 and 446.89

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Solution

The fourth proportional to 611.83, 844.55 and 446.89 is: 616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.83 : 844.55 = 446.89 : x
  2. Step 2: Convert to fraction form
    611.83/844.55 = 446.89/x
  3. Step 3: Cross multiply
    611.83x = 844.55 × 446.89
  4. Step 4: Simplify right side
    611.83x = 377,420.95
  5. Step 5: Solve for x
    x = 377,420.95/611.83
  6. Step 6: Final answer
    x = 616.87

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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.