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Finding the Fourth Proportional to 1,264,287, 1,744,716.06 and 727,743

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Solution

The fourth proportional to 1,264,287, 1,744,716.06 and 727,743 is: 1,004,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,287 : 1,744,716.06 = 727,743 : x
  2. Step 2: Convert to fraction form
    1,264,287/1,744,716.06 = 727,743/x
  3. Step 3: Cross multiply
    1,264,287x = 1,744,716.06 × 727,743
  4. Step 4: Simplify right side
    1,264,287x = 1,269,704,899,652.58
  5. Step 5: Solve for x
    x = 1,269,704,899,652.58/1,264,287
  6. Step 6: Final answer
    x = 1,004,285.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.