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Finding the Fourth Proportional to 778,476, 1,167,707.04 and 245,997.12

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Solution

The fourth proportional to 778,476, 1,167,707.04 and 245,997.12 is: 368,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,476 : 1,167,707.04 = 245,997.12 : x
  2. Step 2: Convert to fraction form
    778,476/1,167,707.04 = 245,997.12/x
  3. Step 3: Cross multiply
    778,476x = 1,167,707.04 × 245,997.12
  4. Step 4: Simplify right side
    778,476x = 287,252,568,843.73
  5. Step 5: Solve for x
    x = 287,252,568,843.73/778,476
  6. Step 6: Final answer
    x = 368,993.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.