Home / 842,825.51-1,263,974.75-281,728.79

Finding the Fourth Proportional to 842,825.51, 1,263,974.75 and 281,728.79

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Solution

The fourth proportional to 842,825.51, 1,263,974.75 and 281,728.79 is: 422,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,825.51 : 1,263,974.75 = 281,728.79 : x
  2. Step 2: Convert to fraction form
    842,825.51/1,263,974.75 = 281,728.79/x
  3. Step 3: Cross multiply
    842,825.51x = 1,263,974.75 × 281,728.79
  4. Step 4: Simplify right side
    842,825.51x = 356,098,079,363.67
  5. Step 5: Solve for x
    x = 356,098,079,363.67/842,825.51
  6. Step 6: Final answer
    x = 422,505.10

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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.