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Finding the Fourth Proportional to 447,011.96, 670,958.58 and 328,350.20

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Solution

The fourth proportional to 447,011.96, 670,958.58 and 328,350.20 is: 492,848.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,011.96 : 670,958.58 = 328,350.20 : x
  2. Step 2: Convert to fraction form
    447,011.96/670,958.58 = 328,350.20/x
  3. Step 3: Cross multiply
    447,011.96x = 670,958.58 × 328,350.20
  4. Step 4: Simplify right side
    447,011.96x = 220,309,383,934.72
  5. Step 5: Solve for x
    x = 220,309,383,934.72/447,011.96
  6. Step 6: Final answer
    x = 492,848.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.