Home / 490,923.95-677,470.77-276,059.43

Finding the Fourth Proportional to 490,923.95, 677,470.77 and 276,059.43

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Solution

The fourth proportional to 490,923.95, 677,470.77 and 276,059.43 is: 380,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,923.95 : 677,470.77 = 276,059.43 : x
  2. Step 2: Convert to fraction form
    490,923.95/677,470.77 = 276,059.43/x
  3. Step 3: Cross multiply
    490,923.95x = 677,470.77 × 276,059.43
  4. Step 4: Simplify right side
    490,923.95x = 187,022,194,607.86
  5. Step 5: Solve for x
    x = 187,022,194,607.86/490,923.95
  6. Step 6: Final answer
    x = 380,959.61

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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.