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Finding the Fourth Proportional to 511,839.60, 765,708.84 and 442,466.16

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Solution

The fourth proportional to 511,839.60, 765,708.84 and 442,466.16 is: 661,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,839.60 : 765,708.84 = 442,466.16 : x
  2. Step 2: Convert to fraction form
    511,839.60/765,708.84 = 442,466.16/x
  3. Step 3: Cross multiply
    511,839.60x = 765,708.84 × 442,466.16
  4. Step 4: Simplify right side
    511,839.60x = 338,800,250,112.85
  5. Step 5: Solve for x
    x = 338,800,250,112.85/511,839.60
  6. Step 6: Final answer
    x = 661,926.61

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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.