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Finding the Fourth Proportional to 667,093.44, 920,571.12 and 380,608.32

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Solution

The fourth proportional to 667,093.44, 920,571.12 and 380,608.32 is: 525,229.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,093.44 : 920,571.12 = 380,608.32 : x
  2. Step 2: Convert to fraction form
    667,093.44/920,571.12 = 380,608.32/x
  3. Step 3: Cross multiply
    667,093.44x = 920,571.12 × 380,608.32
  4. Step 4: Simplify right side
    667,093.44x = 350,377,027,423.72
  5. Step 5: Solve for x
    x = 350,377,027,423.72/667,093.44
  6. Step 6: Final answer
    x = 525,229.31

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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.