Home / 842,455.82-1,263,683.91-281,490.38

Finding the Fourth Proportional to 842,455.82, 1,263,683.91 and 281,490.38

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Solution

The fourth proportional to 842,455.82, 1,263,683.91 and 281,490.38 is: 422,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,455.82 : 1,263,683.91 = 281,490.38 : x
  2. Step 2: Convert to fraction form
    842,455.82/1,263,683.91 = 281,490.38/x
  3. Step 3: Cross multiply
    842,455.82x = 1,263,683.91 × 281,490.38
  4. Step 4: Simplify right side
    842,455.82x = 355,714,864,025.79
  5. Step 5: Solve for x
    x = 355,714,864,025.79/842,455.82
  6. Step 6: Final answer
    x = 422,235.63

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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.