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Finding the Fourth Proportional to 672,873.39, 928,565.10 and 371,067.39

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Solution

The fourth proportional to 672,873.39, 928,565.10 and 371,067.39 is: 512,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,873.39 : 928,565.10 = 371,067.39 : x
  2. Step 2: Convert to fraction form
    672,873.39/928,565.10 = 371,067.39/x
  3. Step 3: Cross multiply
    672,873.39x = 928,565.10 × 371,067.39
  4. Step 4: Simplify right side
    672,873.39x = 344,560,228,102.09
  5. Step 5: Solve for x
    x = 344,560,228,102.09/672,873.39
  6. Step 6: Final answer
    x = 512,072.90

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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.