Home / 490,887.06-677,410.68-276,021.60

Finding the Fourth Proportional to 490,887.06, 677,410.68 and 276,021.60

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Solution

The fourth proportional to 490,887.06, 677,410.68 and 276,021.60 is: 380,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,887.06 : 677,410.68 = 276,021.60 : x
  2. Step 2: Convert to fraction form
    490,887.06/677,410.68 = 276,021.60/x
  3. Step 3: Cross multiply
    490,887.06x = 677,410.68 × 276,021.60
  4. Step 4: Simplify right side
    490,887.06x = 186,979,979,750.69
  5. Step 5: Solve for x
    x = 186,979,979,750.69/490,887.06
  6. Step 6: Final answer
    x = 380,902.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.