Home / 809,836.80-1,214,755.20-766,291.20

Finding the Fourth Proportional to 809,836.80, 1,214,755.20 and 766,291.20

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Solution

The fourth proportional to 809,836.80, 1,214,755.20 and 766,291.20 is: 1,149,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,836.80 : 1,214,755.20 = 766,291.20 : x
  2. Step 2: Convert to fraction form
    809,836.80/1,214,755.20 = 766,291.20/x
  3. Step 3: Cross multiply
    809,836.80x = 1,214,755.20 × 766,291.20
  4. Step 4: Simplify right side
    809,836.80x = 930,856,219,914.24
  5. Step 5: Solve for x
    x = 930,856,219,914.24/809,836.80
  6. Step 6: Final answer
    x = 1,149,436.80

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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.