Home / 928,965.60-1,391,115.60-611,704.80

Finding the Fourth Proportional to 928,965.60, 1,391,115.60 and 611,704.80

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Solution

The fourth proportional to 928,965.60, 1,391,115.60 and 611,704.80 is: 916,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,965.60 : 1,391,115.60 = 611,704.80 : x
  2. Step 2: Convert to fraction form
    928,965.60/1,391,115.60 = 611,704.80/x
  3. Step 3: Cross multiply
    928,965.60x = 1,391,115.60 × 611,704.80
  4. Step 4: Simplify right side
    928,965.60x = 850,952,089,874.88
  5. Step 5: Solve for x
    x = 850,952,089,874.88/928,965.60
  6. Step 6: Final answer
    x = 916,021.10

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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.