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Finding the Fourth Proportional to 583.44, 875.34 and 388.32

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Solution

The fourth proportional to 583.44, 875.34 and 388.32 is: 582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.44 : 875.34 = 388.32 : x
  2. Step 2: Convert to fraction form
    583.44/875.34 = 388.32/x
  3. Step 3: Cross multiply
    583.44x = 875.34 × 388.32
  4. Step 4: Simplify right side
    583.44x = 339,912.03
  5. Step 5: Solve for x
    x = 339,912.03/583.44
  6. Step 6: Final answer
    x = 582.60

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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.