Home / 1,338,078.20-1,848,080.42-881,234.92

Finding the Fourth Proportional to 1,338,078.20, 1,848,080.42 and 881,234.92

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Solution

The fourth proportional to 1,338,078.20, 1,848,080.42 and 881,234.92 is: 1,217,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,078.20 : 1,848,080.42 = 881,234.92 : x
  2. Step 2: Convert to fraction form
    1,338,078.20/1,848,080.42 = 881,234.92/x
  3. Step 3: Cross multiply
    1,338,078.20x = 1,848,080.42 × 881,234.92
  4. Step 4: Simplify right side
    1,338,078.20x = 1,628,593,001,072.27
  5. Step 5: Solve for x
    x = 1,628,593,001,072.27/1,338,078.20
  6. Step 6: Final answer
    x = 1,217,113.47

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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.