Finding the Fourth Proportional to 4,089,720.60, 6,134,580.90 and 1,211,191.20
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Solution
The fourth proportional to 4,089,720.60, 6,134,580.90 and 1,211,191.20 is: 1,816,786.80
Step by Step Solution
- Step 1: Write the proportion equation
4,089,720.60 : 6,134,580.90 = 1,211,191.20 : x - Step 2: Convert to fraction form
4,089,720.60/6,134,580.90 = 1,211,191.20/x - Step 3: Cross multiply
4,089,720.60x = 6,134,580.90 × 1,211,191.20 - Step 4: Simplify right side
4,089,720.60x = 7,430,150,401,768.08 - Step 5: Solve for x
x = 7,430,150,401,768.08/4,089,720.60 - Step 6: Final answer
x = 1,816,786.80
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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.