Home / 490,941.82-677,420.79-276,069.04

Finding the Fourth Proportional to 490,941.82, 677,420.79 and 276,069.04

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Solution

The fourth proportional to 490,941.82, 677,420.79 and 276,069.04 is: 380,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,941.82 : 677,420.79 = 276,069.04 : x
  2. Step 2: Convert to fraction form
    490,941.82/677,420.79 = 276,069.04/x
  3. Step 3: Cross multiply
    490,941.82x = 677,420.79 × 276,069.04
  4. Step 4: Simplify right side
    490,941.82x = 187,014,907,171.34
  5. Step 5: Solve for x
    x = 187,014,907,171.34/490,941.82
  6. Step 6: Final answer
    x = 380,930.90

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1.5x scale

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.