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Finding the Fourth Proportional to 511,620.43, 767,962.91 and 376,836.68

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Solution

The fourth proportional to 511,620.43, 767,962.91 and 376,836.68 is: 565,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,620.43 : 767,962.91 = 376,836.68 : x
  2. Step 2: Convert to fraction form
    511,620.43/767,962.91 = 376,836.68/x
  3. Step 3: Cross multiply
    511,620.43x = 767,962.91 × 376,836.68
  4. Step 4: Simplify right side
    511,620.43x = 289,396,593,367.54
  5. Step 5: Solve for x
    x = 289,396,593,367.54/511,620.43
  6. Step 6: Final answer
    x = 565,647.06

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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.