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Finding the Fourth Proportional to 484.22, 666.62 and 435

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Solution

The fourth proportional to 484.22, 666.62 and 435 is: 598.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.22 : 666.62 = 435 : x
  2. Step 2: Convert to fraction form
    484.22/666.62 = 435/x
  3. Step 3: Cross multiply
    484.22x = 666.62 × 435
  4. Step 4: Simplify right side
    484.22x = 289,979.70
  5. Step 5: Solve for x
    x = 289,979.70/484.22
  6. Step 6: Final answer
    x = 598.86

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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.