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Finding the Fourth Proportional to 444.80, 609.90 and 429.34

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Solution

The fourth proportional to 444.80, 609.90 and 429.34 is: 588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.80 : 609.90 = 429.34 : x
  2. Step 2: Convert to fraction form
    444.80/609.90 = 429.34/x
  3. Step 3: Cross multiply
    444.80x = 609.90 × 429.34
  4. Step 4: Simplify right side
    444.80x = 261,854.47
  5. Step 5: Solve for x
    x = 261,854.47/444.80
  6. Step 6: Final answer
    x = 588.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.