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Finding the Fourth Proportional to 667,231.04, 920,550.08 and 380,544.96

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Solution

The fourth proportional to 667,231.04, 920,550.08 and 380,544.96 is: 525,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,231.04 : 920,550.08 = 380,544.96 : x
  2. Step 2: Convert to fraction form
    667,231.04/920,550.08 = 380,544.96/x
  3. Step 3: Cross multiply
    667,231.04x = 920,550.08 × 380,544.96
  4. Step 4: Simplify right side
    667,231.04x = 350,310,693,371.60
  5. Step 5: Solve for x
    x = 350,310,693,371.60/667,231.04
  6. Step 6: Final answer
    x = 525,021.58

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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.