Home / 1,361,243.76-1,878,626.19-780,520.92

Finding the Fourth Proportional to 1,361,243.76, 1,878,626.19 and 780,520.92

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Solution

The fourth proportional to 1,361,243.76, 1,878,626.19 and 780,520.92 is: 1,077,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,243.76 : 1,878,626.19 = 780,520.92 : x
  2. Step 2: Convert to fraction form
    1,361,243.76/1,878,626.19 = 780,520.92/x
  3. Step 3: Cross multiply
    1,361,243.76x = 1,878,626.19 × 780,520.92
  4. Step 4: Simplify right side
    1,361,243.76x = 1,466,307,042,154.89
  5. Step 5: Solve for x
    x = 1,466,307,042,154.89/1,361,243.76
  6. Step 6: Final answer
    x = 1,077,181.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.