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Finding the Fourth Proportional to 493,847.70, 740,771.55 and 438,735.30

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Solution

The fourth proportional to 493,847.70, 740,771.55 and 438,735.30 is: 658,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,847.70 : 740,771.55 = 438,735.30 : x
  2. Step 2: Convert to fraction form
    493,847.70/740,771.55 = 438,735.30/x
  3. Step 3: Cross multiply
    493,847.70x = 740,771.55 × 438,735.30
  4. Step 4: Simplify right side
    493,847.70x = 325,002,628,220.72
  5. Step 5: Solve for x
    x = 325,002,628,220.72/493,847.70
  6. Step 6: Final answer
    x = 658,102.95

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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.