Home / 1,288,944.60-1,930,471.92-615,497.64

Finding the Fourth Proportional to 1,288,944.60, 1,930,471.92 and 615,497.64

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Solution

The fourth proportional to 1,288,944.60, 1,930,471.92 and 615,497.64 is: 921,840.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,944.60 : 1,930,471.92 = 615,497.64 : x
  2. Step 2: Convert to fraction form
    1,288,944.60/1,930,471.92 = 615,497.64/x
  3. Step 3: Cross multiply
    1,288,944.60x = 1,930,471.92 × 615,497.64
  4. Step 4: Simplify right side
    1,288,944.60x = 1,188,200,910,846.27
  5. Step 5: Solve for x
    x = 1,188,200,910,846.27/1,288,944.60
  6. Step 6: Final answer
    x = 921,840.17

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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.