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Finding the Fourth Proportional to 447,285.51, 670,440.26 and 219,737.72

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Solution

The fourth proportional to 447,285.51, 670,440.26 and 219,737.72 is: 329,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,285.51 : 670,440.26 = 219,737.72 : x
  2. Step 2: Convert to fraction form
    447,285.51/670,440.26 = 219,737.72/x
  3. Step 3: Cross multiply
    447,285.51x = 670,440.26 × 219,737.72
  4. Step 4: Simplify right side
    447,285.51x = 147,321,016,354.05
  5. Step 5: Solve for x
    x = 147,321,016,354.05/447,285.51
  6. Step 6: Final answer
    x = 329,366.84

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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.