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Finding the Fourth Proportional to 2,266,781, 3,400,620.20 and 647,563.80

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Solution

The fourth proportional to 2,266,781, 3,400,620.20 and 647,563.80 is: 971,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266,781 : 3,400,620.20 = 647,563.80 : x
  2. Step 2: Convert to fraction form
    2,266,781/3,400,620.20 = 647,563.80/x
  3. Step 3: Cross multiply
    2,266,781x = 3,400,620.20 × 647,563.80
  4. Step 4: Simplify right side
    2,266,781x = 2,202,118,539,068.76
  5. Step 5: Solve for x
    x = 2,202,118,539,068.76/2,266,781
  6. Step 6: Final answer
    x = 971,473.88

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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.