Home / 1,861,987.38-2,792,905.20-647,841.96

Finding the Fourth Proportional to 1,861,987.38, 2,792,905.20 and 647,841.96

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Solution

The fourth proportional to 1,861,987.38, 2,792,905.20 and 647,841.96 is: 971,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,987.38 : 2,792,905.20 = 647,841.96 : x
  2. Step 2: Convert to fraction form
    1,861,987.38/2,792,905.20 = 647,841.96/x
  3. Step 3: Cross multiply
    1,861,987.38x = 2,792,905.20 × 647,841.96
  4. Step 4: Simplify right side
    1,861,987.38x = 1,809,361,178,862.19
  5. Step 5: Solve for x
    x = 1,809,361,178,862.19/1,861,987.38
  6. Step 6: Final answer
    x = 971,736.54

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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.