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Finding the Fourth Proportional to 604.12, 903.08 and 448.60

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Solution

The fourth proportional to 604.12, 903.08 and 448.60 is: 670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.12 : 903.08 = 448.60 : x
  2. Step 2: Convert to fraction form
    604.12/903.08 = 448.60/x
  3. Step 3: Cross multiply
    604.12x = 903.08 × 448.60
  4. Step 4: Simplify right side
    604.12x = 405,121.69
  5. Step 5: Solve for x
    x = 405,121.69/604.12
  6. Step 6: Final answer
    x = 670.60

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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.