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Finding the Fourth Proportional to 488,007.05, 673,354.01 and 306,613.88

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Solution

The fourth proportional to 488,007.05, 673,354.01 and 306,613.88 is: 423,067.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,007.05 : 673,354.01 = 306,613.88 : x
  2. Step 2: Convert to fraction form
    488,007.05/673,354.01 = 306,613.88/x
  3. Step 3: Cross multiply
    488,007.05x = 673,354.01 × 306,613.88
  4. Step 4: Simplify right side
    488,007.05x = 206,459,684,086.59
  5. Step 5: Solve for x
    x = 206,459,684,086.59/488,007.05
  6. Step 6: Final answer
    x = 423,067.01

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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.