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Finding the Fourth Proportional to 2,761,813, 4,142,771.34 and 767,320.84

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Solution

The fourth proportional to 2,761,813, 4,142,771.34 and 767,320.84 is: 1,150,995.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761,813 : 4,142,771.34 = 767,320.84 : x
  2. Step 2: Convert to fraction form
    2,761,813/4,142,771.34 = 767,320.84/x
  3. Step 3: Cross multiply
    2,761,813x = 4,142,771.34 × 767,320.84
  4. Step 4: Simplify right side
    2,761,813x = 3,178,834,784,536.73
  5. Step 5: Solve for x
    x = 3,178,834,784,536.73/2,761,813
  6. Step 6: Final answer
    x = 1,150,995.66

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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.