Home / 483,454.20-667,262.28-308,912.76

Finding the Fourth Proportional to 483,454.20, 667,262.28 and 308,912.76

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Solution

The fourth proportional to 483,454.20, 667,262.28 and 308,912.76 is: 426,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,454.20 : 667,262.28 = 308,912.76 : x
  2. Step 2: Convert to fraction form
    483,454.20/667,262.28 = 308,912.76/x
  3. Step 3: Cross multiply
    483,454.20x = 667,262.28 × 308,912.76
  4. Step 4: Simplify right side
    483,454.20x = 206,125,832,558.69
  5. Step 5: Solve for x
    x = 206,125,832,558.69/483,454.20
  6. Step 6: Final answer
    x = 426,360.62

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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.