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Finding the Fourth Proportional to 479,513.42, 661,750.11 and 275,630.54

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Solution

The fourth proportional to 479,513.42, 661,750.11 and 275,630.54 is: 380,382.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,513.42 : 661,750.11 = 275,630.54 : x
  2. Step 2: Convert to fraction form
    479,513.42/661,750.11 = 275,630.54/x
  3. Step 3: Cross multiply
    479,513.42x = 661,750.11 × 275,630.54
  4. Step 4: Simplify right side
    479,513.42x = 182,398,540,164.36
  5. Step 5: Solve for x
    x = 182,398,540,164.36/479,513.42
  6. Step 6: Final answer
    x = 380,382.56

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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.