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Finding the Fourth Proportional to 2,764,979.67, 4,148,169.30 and 770,435.67

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Solution

The fourth proportional to 2,764,979.67, 4,148,169.30 and 770,435.67 is: 1,155,848.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764,979.67 : 4,148,169.30 = 770,435.67 : x
  2. Step 2: Convert to fraction form
    2,764,979.67/4,148,169.30 = 770,435.67/x
  3. Step 3: Cross multiply
    2,764,979.67x = 4,148,169.30 × 770,435.67
  4. Step 4: Simplify right side
    2,764,979.67x = 3,195,897,593,918.93
  5. Step 5: Solve for x
    x = 3,195,897,593,918.93/2,764,979.67
  6. Step 6: Final answer
    x = 1,155,848.50

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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.