Home / 1,661,059.40-2,489,930.22-820,214.60

Finding the Fourth Proportional to 1,661,059.40, 2,489,930.22 and 820,214.60

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Solution

The fourth proportional to 1,661,059.40, 2,489,930.22 and 820,214.60 is: 1,229,502.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,059.40 : 2,489,930.22 = 820,214.60 : x
  2. Step 2: Convert to fraction form
    1,661,059.40/2,489,930.22 = 820,214.60/x
  3. Step 3: Cross multiply
    1,661,059.40x = 2,489,930.22 × 820,214.60
  4. Step 4: Simplify right side
    1,661,059.40x = 2,042,277,119,425.21
  5. Step 5: Solve for x
    x = 2,042,277,119,425.21/1,661,059.40
  6. Step 6: Final answer
    x = 1,229,502.76

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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.