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Finding the Fourth Proportional to 608.64, 911.86 and 586.14

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Solution

The fourth proportional to 608.64, 911.86 and 586.14 is: 878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.64 : 911.86 = 586.14 : x
  2. Step 2: Convert to fraction form
    608.64/911.86 = 586.14/x
  3. Step 3: Cross multiply
    608.64x = 911.86 × 586.14
  4. Step 4: Simplify right side
    608.64x = 534,477.62
  5. Step 5: Solve for x
    x = 534,477.62/608.64
  6. Step 6: Final answer
    x = 878.15

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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.