Home / 1,089,816.70-1,634,734.32-379,843.60

Finding the Fourth Proportional to 1,089,816.70, 1,634,734.32 and 379,843.60

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Solution

The fourth proportional to 1,089,816.70, 1,634,734.32 and 379,843.60 is: 569,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,816.70 : 1,634,734.32 = 379,843.60 : x
  2. Step 2: Convert to fraction form
    1,089,816.70/1,634,734.32 = 379,843.60/x
  3. Step 3: Cross multiply
    1,089,816.70x = 1,634,734.32 × 379,843.60
  4. Step 4: Simplify right side
    1,089,816.70x = 620,943,369,152.35
  5. Step 5: Solve for x
    x = 620,943,369,152.35/1,089,816.70
  6. Step 6: Final answer
    x = 569,768.63

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1.5x scale

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.