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Finding the Fourth Proportional to 2,801,168, 4,201,757.12 and 699,920

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Solution

The fourth proportional to 2,801,168, 4,201,757.12 and 699,920 is: 1,049,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801,168 : 4,201,757.12 = 699,920 : x
  2. Step 2: Convert to fraction form
    2,801,168/4,201,757.12 = 699,920/x
  3. Step 3: Cross multiply
    2,801,168x = 4,201,757.12 × 699,920
  4. Step 4: Simplify right side
    2,801,168x = 2,940,893,843,430.40
  5. Step 5: Solve for x
    x = 2,940,893,843,430.40/2,801,168
  6. Step 6: Final answer
    x = 1,049,881.28

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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.