Home / 1,261,309.79-1,892,555.19-551,245.57

Finding the Fourth Proportional to 1,261,309.79, 1,892,555.19 and 551,245.57

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Solution

The fourth proportional to 1,261,309.79, 1,892,555.19 and 551,245.57 is: 827,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,309.79 : 1,892,555.19 = 551,245.57 : x
  2. Step 2: Convert to fraction form
    1,261,309.79/1,892,555.19 = 551,245.57/x
  3. Step 3: Cross multiply
    1,261,309.79x = 1,892,555.19 × 551,245.57
  4. Step 4: Simplify right side
    1,261,309.79x = 1,043,262,659,736.62
  5. Step 5: Solve for x
    x = 1,043,262,659,736.62/1,261,309.79
  6. Step 6: Final answer
    x = 827,126.43

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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.