Home / 1,115,082.78-1,538,825.04-605,788.80

Finding the Fourth Proportional to 1,115,082.78, 1,538,825.04 and 605,788.80

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Solution

The fourth proportional to 1,115,082.78, 1,538,825.04 and 605,788.80 is: 835,994.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,082.78 : 1,538,825.04 = 605,788.80 : x
  2. Step 2: Convert to fraction form
    1,115,082.78/1,538,825.04 = 605,788.80/x
  3. Step 3: Cross multiply
    1,115,082.78x = 1,538,825.04 × 605,788.80
  4. Step 4: Simplify right side
    1,115,082.78x = 932,202,974,391.55
  5. Step 5: Solve for x
    x = 932,202,974,391.55/1,115,082.78
  6. Step 6: Final answer
    x = 835,994.41

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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.