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Finding the Fourth Proportional to 579.37, 799.51 and 346.45

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Solution

The fourth proportional to 579.37, 799.51 and 346.45 is: 478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.37 : 799.51 = 346.45 : x
  2. Step 2: Convert to fraction form
    579.37/799.51 = 346.45/x
  3. Step 3: Cross multiply
    579.37x = 799.51 × 346.45
  4. Step 4: Simplify right side
    579.37x = 276,990.24
  5. Step 5: Solve for x
    x = 276,990.24/579.37
  6. Step 6: Final answer
    x = 478.09

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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.