Home / 821,944.64-1,233,016.60-289,356.68

Finding the Fourth Proportional to 821,944.64, 1,233,016.60 and 289,356.68

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Solution

The fourth proportional to 821,944.64, 1,233,016.60 and 289,356.68 is: 434,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,944.64 : 1,233,016.60 = 289,356.68 : x
  2. Step 2: Convert to fraction form
    821,944.64/1,233,016.60 = 289,356.68/x
  3. Step 3: Cross multiply
    821,944.64x = 1,233,016.60 × 289,356.68
  4. Step 4: Simplify right side
    821,944.64x = 356,781,589,760.89
  5. Step 5: Solve for x
    x = 356,781,589,760.89/821,944.64
  6. Step 6: Final answer
    x = 434,070.10

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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.