Home / 1,003,645.80-1,383,121.98-985,201.20

Finding the Fourth Proportional to 1,003,645.80, 1,383,121.98 and 985,201.20

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Solution

The fourth proportional to 1,003,645.80, 1,383,121.98 and 985,201.20 is: 1,357,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,645.80 : 1,383,121.98 = 985,201.20 : x
  2. Step 2: Convert to fraction form
    1,003,645.80/1,383,121.98 = 985,201.20/x
  3. Step 3: Cross multiply
    1,003,645.80x = 1,383,121.98 × 985,201.20
  4. Step 4: Simplify right side
    1,003,645.80x = 1,362,653,434,442.38
  5. Step 5: Solve for x
    x = 1,362,653,434,442.38/1,003,645.80
  6. Step 6: Final answer
    x = 1,357,703.52

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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.