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Finding the Fourth Proportional to 699,262.26, 964,708.59 and 393,268.44

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Solution

The fourth proportional to 699,262.26, 964,708.59 and 393,268.44 is: 542,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,262.26 : 964,708.59 = 393,268.44 : x
  2. Step 2: Convert to fraction form
    699,262.26/964,708.59 = 393,268.44/x
  3. Step 3: Cross multiply
    699,262.26x = 964,708.59 × 393,268.44
  4. Step 4: Simplify right side
    699,262.26x = 379,389,442,243.90
  5. Step 5: Solve for x
    x = 379,389,442,243.90/699,262.26
  6. Step 6: Final answer
    x = 542,556.73

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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.