Finding the Fourth Proportional to 3,438,830.40, 5,158,245.60 and 1,738,219.20
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Solution
The fourth proportional to 3,438,830.40, 5,158,245.60 and 1,738,219.20 is: 2,607,328.80
Step by Step Solution
- Step 1: Write the proportion equation
3,438,830.40 : 5,158,245.60 = 1,738,219.20 : x - Step 2: Convert to fraction form
3,438,830.40/5,158,245.60 = 1,738,219.20/x - Step 3: Cross multiply
3,438,830.40x = 5,158,245.60 × 1,738,219.20 - Step 4: Simplify right side
3,438,830.40x = 8,966,161,540,235.52 - Step 5: Solve for x
x = 8,966,161,540,235.52/3,438,830.40 - Step 6: Final answer
x = 2,607,328.80
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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.