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Finding the Fourth Proportional to 613.31, 922.62 and 607.19

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Solution

The fourth proportional to 613.31, 922.62 and 607.19 is: 913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.31 : 922.62 = 607.19 : x
  2. Step 2: Convert to fraction form
    613.31/922.62 = 607.19/x
  3. Step 3: Cross multiply
    613.31x = 922.62 × 607.19
  4. Step 4: Simplify right side
    613.31x = 560,205.64
  5. Step 5: Solve for x
    x = 560,205.64/613.31
  6. Step 6: Final answer
    x = 913.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.