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Finding the Fourth Proportional to 447,958.58, 618,138 and 275,848.97

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Solution

The fourth proportional to 447,958.58, 618,138 and 275,848.97 is: 380,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,958.58 : 618,138 = 275,848.97 : x
  2. Step 2: Convert to fraction form
    447,958.58/618,138 = 275,848.97/x
  3. Step 3: Cross multiply
    447,958.58x = 618,138 × 275,848.97
  4. Step 4: Simplify right side
    447,958.58x = 170,512,727,527.17
  5. Step 5: Solve for x
    x = 170,512,727,527.17/447,958.58
  6. Step 6: Final answer
    x = 380,643.96

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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.