Home / 1,303,158.82-1,798,371.09-722,388.21

Finding the Fourth Proportional to 1,303,158.82, 1,798,371.09 and 722,388.21

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Solution

The fourth proportional to 1,303,158.82, 1,798,371.09 and 722,388.21 is: 996,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,158.82 : 1,798,371.09 = 722,388.21 : x
  2. Step 2: Convert to fraction form
    1,303,158.82/1,798,371.09 = 722,388.21/x
  3. Step 3: Cross multiply
    1,303,158.82x = 1,798,371.09 × 722,388.21
  4. Step 4: Simplify right side
    1,303,158.82x = 1,299,122,072,620.85
  5. Step 5: Solve for x
    x = 1,299,122,072,620.85/1,303,158.82
  6. Step 6: Final answer
    x = 996,902.34

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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.