Finding the Fourth Proportional to 4,374,743.20, 6,562,114.80 and 3,311,861.20
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Solution
The fourth proportional to 4,374,743.20, 6,562,114.80 and 3,311,861.20 is: 4,967,791.80
Step by Step Solution
- Step 1: Write the proportion equation
4,374,743.20 : 6,562,114.80 = 3,311,861.20 : x - Step 2: Convert to fraction form
4,374,743.20/6,562,114.80 = 3,311,861.20/x - Step 3: Cross multiply
4,374,743.20x = 6,562,114.80 × 3,311,861.20 - Step 4: Simplify right side
4,374,743.20x = 21,732,813,396,065.76 - Step 5: Solve for x
x = 21,732,813,396,065.76/4,374,743.20 - Step 6: Final answer
x = 4,967,791.80
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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.