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Finding the Fourth Proportional to 667,273.44, 920,832.76 and 361,342.82

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Solution

The fourth proportional to 667,273.44, 920,832.76 and 361,342.82 is: 498,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,273.44 : 920,832.76 = 361,342.82 : x
  2. Step 2: Convert to fraction form
    667,273.44/920,832.76 = 361,342.82/x
  3. Step 3: Cross multiply
    667,273.44x = 920,832.76 × 361,342.82
  4. Step 4: Simplify right side
    667,273.44x = 332,736,306,246.78
  5. Step 5: Solve for x
    x = 332,736,306,246.78/667,273.44
  6. Step 6: Final answer
    x = 498,650.61

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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.