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Finding the Fourth Proportional to 584.78, 881.18 and 484.32

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Solution

The fourth proportional to 584.78, 881.18 and 484.32 is: 729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.78 : 881.18 = 484.32 : x
  2. Step 2: Convert to fraction form
    584.78/881.18 = 484.32/x
  3. Step 3: Cross multiply
    584.78x = 881.18 × 484.32
  4. Step 4: Simplify right side
    584.78x = 426,770.68
  5. Step 5: Solve for x
    x = 426,770.68/584.78
  6. Step 6: Final answer
    x = 729.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.