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Finding the Fourth Proportional to 624,298.20, 936,576.90 and 203,605.80

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Solution

The fourth proportional to 624,298.20, 936,576.90 and 203,605.80 is: 305,450.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,298.20 : 936,576.90 = 203,605.80 : x
  2. Step 2: Convert to fraction form
    624,298.20/936,576.90 = 203,605.80/x
  3. Step 3: Cross multiply
    624,298.20x = 936,576.90 × 203,605.80
  4. Step 4: Simplify right side
    624,298.20x = 190,692,488,986.02
  5. Step 5: Solve for x
    x = 190,692,488,986.02/624,298.20
  6. Step 6: Final answer
    x = 305,450.97

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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.