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Finding the Fourth Proportional to 579, 798.97 and 330.34

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Solution

The fourth proportional to 579, 798.97 and 330.34 is: 455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    579 : 798.97 = 330.34 : x
  2. Step 2: Convert to fraction form
    579/798.97 = 330.34/x
  3. Step 3: Cross multiply
    579x = 798.97 × 330.34
  4. Step 4: Simplify right side
    579x = 263,931.75
  5. Step 5: Solve for x
    x = 263,931.75/579
  6. Step 6: Final answer
    x = 455.84

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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.