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Finding the Fourth Proportional to 603,912.40, 905,868.60 and 404,846.80

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Solution

The fourth proportional to 603,912.40, 905,868.60 and 404,846.80 is: 607,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,912.40 : 905,868.60 = 404,846.80 : x
  2. Step 2: Convert to fraction form
    603,912.40/905,868.60 = 404,846.80/x
  3. Step 3: Cross multiply
    603,912.40x = 905,868.60 × 404,846.80
  4. Step 4: Simplify right side
    603,912.40x = 366,738,003,930.48
  5. Step 5: Solve for x
    x = 366,738,003,930.48/603,912.40
  6. Step 6: Final answer
    x = 607,270.20

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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.