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Finding the Fourth Proportional to 1,279,342.03, 1,764,751.89 and 826,633.03

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Solution

The fourth proportional to 1,279,342.03, 1,764,751.89 and 826,633.03 is: 1,140,275.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,342.03 : 1,764,751.89 = 826,633.03 : x
  2. Step 2: Convert to fraction form
    1,279,342.03/1,764,751.89 = 826,633.03/x
  3. Step 3: Cross multiply
    1,279,342.03x = 1,764,751.89 × 826,633.03
  4. Step 4: Simplify right side
    1,279,342.03x = 1,458,802,202,028.93
  5. Step 5: Solve for x
    x = 1,458,802,202,028.93/1,279,342.03
  6. Step 6: Final answer
    x = 1,140,275.37

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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.