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Finding the Fourth Proportional to 608.11, 907.79 and 583.81

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Solution

The fourth proportional to 608.11, 907.79 and 583.81 is: 871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.11 : 907.79 = 583.81 : x
  2. Step 2: Convert to fraction form
    608.11/907.79 = 583.81/x
  3. Step 3: Cross multiply
    608.11x = 907.79 × 583.81
  4. Step 4: Simplify right side
    608.11x = 529,976.88
  5. Step 5: Solve for x
    x = 529,976.88/608.11
  6. Step 6: Final answer
    x = 871.51

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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.