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Finding the Fourth Proportional to 2,764,868, 4,147,302 and 663,620

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Solution

The fourth proportional to 2,764,868, 4,147,302 and 663,620 is: 995,430

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764,868 : 4,147,302 = 663,620 : x
  2. Step 2: Convert to fraction form
    2,764,868/4,147,302 = 663,620/x
  3. Step 3: Cross multiply
    2,764,868x = 4,147,302 × 663,620
  4. Step 4: Simplify right side
    2,764,868x = 2,752,232,553,240
  5. Step 5: Solve for x
    x = 2,752,232,553,240/2,764,868
  6. Step 6: Final answer
    x = 995,430

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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.