Home / 1,003,705.20-1,383,198.96-985,256.64

Finding the Fourth Proportional to 1,003,705.20, 1,383,198.96 and 985,256.64

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Solution

The fourth proportional to 1,003,705.20, 1,383,198.96 and 985,256.64 is: 1,357,775.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,705.20 : 1,383,198.96 = 985,256.64 : x
  2. Step 2: Convert to fraction form
    1,003,705.20/1,383,198.96 = 985,256.64/x
  3. Step 3: Cross multiply
    1,003,705.20x = 1,383,198.96 × 985,256.64
  4. Step 4: Simplify right side
    1,003,705.20x = 1,362,805,959,781.09
  5. Step 5: Solve for x
    x = 1,362,805,959,781.09/1,003,705.20
  6. Step 6: Final answer
    x = 1,357,775.13

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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.