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Finding the Fourth Proportional to 614.84, 854.30 and 608.42

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Solution

The fourth proportional to 614.84, 854.30 and 608.42 is: 845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.84 : 854.30 = 608.42 : x
  2. Step 2: Convert to fraction form
    614.84/854.30 = 608.42/x
  3. Step 3: Cross multiply
    614.84x = 854.30 × 608.42
  4. Step 4: Simplify right side
    614.84x = 519,765.89
  5. Step 5: Solve for x
    x = 519,765.89/614.84
  6. Step 6: Final answer
    x = 845.37

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.