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Finding the Fourth Proportional to 547,519.27, 755,527.42 and 305,768.29

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Solution

The fourth proportional to 547,519.27, 755,527.42 and 305,768.29 is: 421,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,519.27 : 755,527.42 = 305,768.29 : x
  2. Step 2: Convert to fraction form
    547,519.27/755,527.42 = 305,768.29/x
  3. Step 3: Cross multiply
    547,519.27x = 755,527.42 × 305,768.29
  4. Step 4: Simplify right side
    547,519.27x = 231,016,327,261.51
  5. Step 5: Solve for x
    x = 231,016,327,261.51/547,519.27
  6. Step 6: Final answer
    x = 421,932.78

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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.