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Finding the Fourth Proportional to 596.31, 822.60 and 386.43

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Solution

The fourth proportional to 596.31, 822.60 and 386.43 is: 533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    596.31 : 822.60 = 386.43 : x
  2. Step 2: Convert to fraction form
    596.31/822.60 = 386.43/x
  3. Step 3: Cross multiply
    596.31x = 822.60 × 386.43
  4. Step 4: Simplify right side
    596.31x = 317,877.32
  5. Step 5: Solve for x
    x = 317,877.32/596.31
  6. Step 6: Final answer
    x = 533.07

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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.