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Finding the Fourth Proportional to 1,376,449.03, 1,899,552.97 and 764,648.24

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Solution

The fourth proportional to 1,376,449.03, 1,899,552.97 and 764,648.24 is: 1,055,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,449.03 : 1,899,552.97 = 764,648.24 : x
  2. Step 2: Convert to fraction form
    1,376,449.03/1,899,552.97 = 764,648.24/x
  3. Step 3: Cross multiply
    1,376,449.03x = 1,899,552.97 × 764,648.24
  4. Step 4: Simplify right side
    1,376,449.03x = 1,452,489,826,755.32
  5. Step 5: Solve for x
    x = 1,452,489,826,755.32/1,376,449.03
  6. Step 6: Final answer
    x = 1,055,244.18

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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.