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Finding the Fourth Proportional to 604.55, 907.64 and 330.77

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Solution

The fourth proportional to 604.55, 907.64 and 330.77 is: 496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.55 : 907.64 = 330.77 : x
  2. Step 2: Convert to fraction form
    604.55/907.64 = 330.77/x
  3. Step 3: Cross multiply
    604.55x = 907.64 × 330.77
  4. Step 4: Simplify right side
    604.55x = 300,213.89
  5. Step 5: Solve for x
    x = 300,213.89/604.55
  6. Step 6: Final answer
    x = 496.59

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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.