Home / 842,455.32-1,263,683.16-281,489.88

Finding the Fourth Proportional to 842,455.32, 1,263,683.16 and 281,489.88

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Solution

The fourth proportional to 842,455.32, 1,263,683.16 and 281,489.88 is: 422,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,455.32 : 1,263,683.16 = 281,489.88 : x
  2. Step 2: Convert to fraction form
    842,455.32/1,263,683.16 = 281,489.88/x
  3. Step 3: Cross multiply
    842,455.32x = 1,263,683.16 × 281,489.88
  4. Step 4: Simplify right side
    842,455.32x = 355,714,021,066.42
  5. Step 5: Solve for x
    x = 355,714,021,066.42/842,455.32
  6. Step 6: Final answer
    x = 422,234.88

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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.