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Finding the Fourth Proportional to 605, 908.46 and 585.32

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Solution

The fourth proportional to 605, 908.46 and 585.32 is: 878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    605 : 908.46 = 585.32 : x
  2. Step 2: Convert to fraction form
    605/908.46 = 585.32/x
  3. Step 3: Cross multiply
    605x = 908.46 × 585.32
  4. Step 4: Simplify right side
    605x = 531,739.81
  5. Step 5: Solve for x
    x = 531,739.81/605
  6. Step 6: Final answer
    x = 878.91

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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.