Home / 1,272,433.80-1,755,914.22-699,469.86

Finding the Fourth Proportional to 1,272,433.80, 1,755,914.22 and 699,469.86

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Solution

The fourth proportional to 1,272,433.80, 1,755,914.22 and 699,469.86 is: 965,243.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,433.80 : 1,755,914.22 = 699,469.86 : x
  2. Step 2: Convert to fraction form
    1,272,433.80/1,755,914.22 = 699,469.86/x
  3. Step 3: Cross multiply
    1,272,433.80x = 1,755,914.22 × 699,469.86
  4. Step 4: Simplify right side
    1,272,433.80x = 1,228,209,073,635.41
  5. Step 5: Solve for x
    x = 1,228,209,073,635.41/1,272,433.80
  6. Step 6: Final answer
    x = 965,243.99

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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.