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Finding the Fourth Proportional to 479.08, 659.55 and 429.88

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Solution

The fourth proportional to 479.08, 659.55 and 429.88 is: 591.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.08 : 659.55 = 429.88 : x
  2. Step 2: Convert to fraction form
    479.08/659.55 = 429.88/x
  3. Step 3: Cross multiply
    479.08x = 659.55 × 429.88
  4. Step 4: Simplify right side
    479.08x = 283,527.35
  5. Step 5: Solve for x
    x = 283,527.35/479.08
  6. Step 6: Final answer
    x = 591.82

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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.