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Finding the Fourth Proportional to 1,278,791.34, 1,764,468.62 and 734,822.04

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Solution

The fourth proportional to 1,278,791.34, 1,764,468.62 and 734,822.04 is: 1,013,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,791.34 : 1,764,468.62 = 734,822.04 : x
  2. Step 2: Convert to fraction form
    1,278,791.34/1,764,468.62 = 734,822.04/x
  3. Step 3: Cross multiply
    1,278,791.34x = 1,764,468.62 × 734,822.04
  4. Step 4: Simplify right side
    1,278,791.34x = 1,296,570,421,784.92
  5. Step 5: Solve for x
    x = 1,296,570,421,784.92/1,278,791.34
  6. Step 6: Final answer
    x = 1,013,903.03

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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.