Finding the Fourth Proportional to 3,220,919.48, 4,828,375.74 and 1,089,520.40
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Solution
The fourth proportional to 3,220,919.48, 4,828,375.74 and 1,089,520.40 is: 1,633,264.63
Step by Step Solution
- Step 1: Write the proportion equation
3,220,919.48 : 4,828,375.74 = 1,089,520.40 : x - Step 2: Convert to fraction form
3,220,919.48/4,828,375.74 = 1,089,520.40/x - Step 3: Cross multiply
3,220,919.48x = 4,828,375.74 × 1,089,520.40 - Step 4: Simplify right side
3,220,919.48x = 5,260,613,867,595.10 - Step 5: Solve for x
x = 5,260,613,867,595.10/3,220,919.48 - Step 6: Final answer
x = 1,633,264.63
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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.