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Finding the Fourth Proportional to 447,863.46, 618,005.88 and 275,754.12

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Solution

The fourth proportional to 447,863.46, 618,005.88 and 275,754.12 is: 380,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,863.46 : 618,005.88 = 275,754.12 : x
  2. Step 2: Convert to fraction form
    447,863.46/618,005.88 = 275,754.12/x
  3. Step 3: Cross multiply
    447,863.46x = 618,005.88 × 275,754.12
  4. Step 4: Simplify right side
    447,863.46x = 170,417,667,594.23
  5. Step 5: Solve for x
    x = 170,417,667,594.23/447,863.46
  6. Step 6: Final answer
    x = 380,512.55

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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.