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Finding the Fourth Proportional to 448.88, 622.61 and 432.48

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Solution

The fourth proportional to 448.88, 622.61 and 432.48 is: 599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.88 : 622.61 = 432.48 : x
  2. Step 2: Convert to fraction form
    448.88/622.61 = 432.48/x
  3. Step 3: Cross multiply
    448.88x = 622.61 × 432.48
  4. Step 4: Simplify right side
    448.88x = 269,266.37
  5. Step 5: Solve for x
    x = 269,266.37/448.88
  6. Step 6: Final answer
    x = 599.86

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.