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Finding the Fourth Proportional to 603.39, 901.34 and 448.48

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Solution

The fourth proportional to 603.39, 901.34 and 448.48 is: 669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.39 : 901.34 = 448.48 : x
  2. Step 2: Convert to fraction form
    603.39/901.34 = 448.48/x
  3. Step 3: Cross multiply
    603.39x = 901.34 × 448.48
  4. Step 4: Simplify right side
    603.39x = 404,232.96
  5. Step 5: Solve for x
    x = 404,232.96/603.39
  6. Step 6: Final answer
    x = 669.94

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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.