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Finding the Fourth Proportional to 624,044.40, 936,469.80 and 343,762.80

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Solution

The fourth proportional to 624,044.40, 936,469.80 and 343,762.80 is: 515,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,044.40 : 936,469.80 = 343,762.80 : x
  2. Step 2: Convert to fraction form
    624,044.40/936,469.80 = 343,762.80/x
  3. Step 3: Cross multiply
    624,044.40x = 936,469.80 × 343,762.80
  4. Step 4: Simplify right side
    624,044.40x = 321,923,480,563.44
  5. Step 5: Solve for x
    x = 321,923,480,563.44/624,044.40
  6. Step 6: Final answer
    x = 515,866.31

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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.