Home / 842,825.12-1,263,974.16-281,728.40

Finding the Fourth Proportional to 842,825.12, 1,263,974.16 and 281,728.40

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Solution

The fourth proportional to 842,825.12, 1,263,974.16 and 281,728.40 is: 422,504.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,825.12 : 1,263,974.16 = 281,728.40 : x
  2. Step 2: Convert to fraction form
    842,825.12/1,263,974.16 = 281,728.40/x
  3. Step 3: Cross multiply
    842,825.12x = 1,263,974.16 × 281,728.40
  4. Step 4: Simplify right side
    842,825.12x = 356,097,418,792.25
  5. Step 5: Solve for x
    x = 356,097,418,792.25/842,825.12
  6. Step 6: Final answer
    x = 422,504.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.