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Finding the Fourth Proportional to 484.97, 667.59 and 429.62

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Solution

The fourth proportional to 484.97, 667.59 and 429.62 is: 591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.97 : 667.59 = 429.62 : x
  2. Step 2: Convert to fraction form
    484.97/667.59 = 429.62/x
  3. Step 3: Cross multiply
    484.97x = 667.59 × 429.62
  4. Step 4: Simplify right side
    484.97x = 286,810.02
  5. Step 5: Solve for x
    x = 286,810.02/484.97
  6. Step 6: Final answer
    x = 591.40

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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.