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Finding the Fourth Proportional to 608.52, 908.52 and 511.32

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Solution

The fourth proportional to 608.52, 908.52 and 511.32 is: 763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.52 : 908.52 = 511.32 : x
  2. Step 2: Convert to fraction form
    608.52/908.52 = 511.32/x
  3. Step 3: Cross multiply
    608.52x = 908.52 × 511.32
  4. Step 4: Simplify right side
    608.52x = 464,544.45
  5. Step 5: Solve for x
    x = 464,544.45/608.52
  6. Step 6: Final answer
    x = 763.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.