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Finding the Fourth Proportional to 434,469.80, 651,704.70 and 419,954.60

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Solution

The fourth proportional to 434,469.80, 651,704.70 and 419,954.60 is: 629,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,469.80 : 651,704.70 = 419,954.60 : x
  2. Step 2: Convert to fraction form
    434,469.80/651,704.70 = 419,954.60/x
  3. Step 3: Cross multiply
    434,469.80x = 651,704.70 × 419,954.60
  4. Step 4: Simplify right side
    434,469.80x = 273,686,386,606.62
  5. Step 5: Solve for x
    x = 273,686,386,606.62/434,469.80
  6. Step 6: Final answer
    x = 629,931.90

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Similar ratio
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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.