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Finding the Fourth Proportional to 604.00, 905.59 and 387.46

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Solution

The fourth proportional to 604.00, 905.59 and 387.46 is: 580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.00 : 905.59 = 387.46 : x
  2. Step 2: Convert to fraction form
    604.00/905.59 = 387.46/x
  3. Step 3: Cross multiply
    604.00x = 905.59 × 387.46
  4. Step 4: Simplify right side
    604.00x = 350,873.44
  5. Step 5: Solve for x
    x = 350,873.44/604.00
  6. Step 6: Final answer
    x = 580.92

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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.