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Finding the Fourth Proportional to 604.99, 836.56 and 480.43

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Solution

The fourth proportional to 604.99, 836.56 and 480.43 is: 664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.99 : 836.56 = 480.43 : x
  2. Step 2: Convert to fraction form
    604.99/836.56 = 480.43/x
  3. Step 3: Cross multiply
    604.99x = 836.56 × 480.43
  4. Step 4: Simplify right side
    604.99x = 401,901.94
  5. Step 5: Solve for x
    x = 401,901.94/604.99
  6. Step 6: Final answer
    x = 664.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.