Home / 827,620.38-1,241,422.61-490,418.33

Finding the Fourth Proportional to 827,620.38, 1,241,422.61 and 490,418.33

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Solution

The fourth proportional to 827,620.38, 1,241,422.61 and 490,418.33 is: 735,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,620.38 : 1,241,422.61 = 490,418.33 : x
  2. Step 2: Convert to fraction form
    827,620.38/1,241,422.61 = 490,418.33/x
  3. Step 3: Cross multiply
    827,620.38x = 1,241,422.61 × 490,418.33
  4. Step 4: Simplify right side
    827,620.38x = 608,816,394,561.24
  5. Step 5: Solve for x
    x = 608,816,394,561.24/827,620.38
  6. Step 6: Final answer
    x = 735,622.77

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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.