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Finding the Fourth Proportional to 492,817.70, 739,226.55 and 443,051.30

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Solution

The fourth proportional to 492,817.70, 739,226.55 and 443,051.30 is: 664,576.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,817.70 : 739,226.55 = 443,051.30 : x
  2. Step 2: Convert to fraction form
    492,817.70/739,226.55 = 443,051.30/x
  3. Step 3: Cross multiply
    492,817.70x = 739,226.55 × 443,051.30
  4. Step 4: Simplify right side
    492,817.70x = 327,515,283,972.02
  5. Step 5: Solve for x
    x = 327,515,283,972.02/492,817.70
  6. Step 6: Final answer
    x = 664,576.95

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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.