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Finding the Fourth Proportional to 585.45, 879.39 and 464.56

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Solution

The fourth proportional to 585.45, 879.39 and 464.56 is: 697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.45 : 879.39 = 464.56 : x
  2. Step 2: Convert to fraction form
    585.45/879.39 = 464.56/x
  3. Step 3: Cross multiply
    585.45x = 879.39 × 464.56
  4. Step 4: Simplify right side
    585.45x = 408,527.22
  5. Step 5: Solve for x
    x = 408,527.22/585.45
  6. Step 6: Final answer
    x = 697.80

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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.