Home / 2,125,376.28-3,188,078.78-776,984.18

Finding the Fourth Proportional to 2,125,376.28, 3,188,078.78 and 776,984.18

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Solution

The fourth proportional to 2,125,376.28, 3,188,078.78 and 776,984.18 is: 1,165,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125,376.28 : 3,188,078.78 = 776,984.18 : x
  2. Step 2: Convert to fraction form
    2,125,376.28/3,188,078.78 = 776,984.18/x
  3. Step 3: Cross multiply
    2,125,376.28x = 3,188,078.78 × 776,984.18
  4. Step 4: Simplify right side
    2,125,376.28x = 2,477,086,756,828.39
  5. Step 5: Solve for x
    x = 2,477,086,756,828.39/2,125,376.28
  6. Step 6: Final answer
    x = 1,165,481.51

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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.