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Finding the Fourth Proportional to 483,245.82, 666,857.66 and 289,760.33

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Solution

The fourth proportional to 483,245.82, 666,857.66 and 289,760.33 is: 399,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,245.82 : 666,857.66 = 289,760.33 : x
  2. Step 2: Convert to fraction form
    483,245.82/666,857.66 = 289,760.33/x
  3. Step 3: Cross multiply
    483,245.82x = 666,857.66 × 289,760.33
  4. Step 4: Simplify right side
    483,245.82x = 193,228,890,841.54
  5. Step 5: Solve for x
    x = 193,228,890,841.54/483,245.82
  6. Step 6: Final answer
    x = 399,856.31

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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.