Home / 814,175.20-1,221,262.80-779,620.60

Finding the Fourth Proportional to 814,175.20, 1,221,262.80 and 779,620.60

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Solution

The fourth proportional to 814,175.20, 1,221,262.80 and 779,620.60 is: 1,169,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,175.20 : 1,221,262.80 = 779,620.60 : x
  2. Step 2: Convert to fraction form
    814,175.20/1,221,262.80 = 779,620.60/x
  3. Step 3: Cross multiply
    814,175.20x = 1,221,262.80 × 779,620.60
  4. Step 4: Simplify right side
    814,175.20x = 952,121,636,893.68
  5. Step 5: Solve for x
    x = 952,121,636,893.68/814,175.20
  6. Step 6: Final answer
    x = 1,169,430.90

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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.