Finding the Fourth Proportional to 408,442.44, 612,692.96 and 108,921.45
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Solution
The fourth proportional to 408,442.44, 612,692.96 and 108,921.45 is: 163,389.99
Step by Step Solution
- Step 1: Write the proportion equation
408,442.44 : 612,692.96 = 108,921.45 : x - Step 2: Convert to fraction form
408,442.44/612,692.96 = 108,921.45/x - Step 3: Cross multiply
408,442.44x = 612,692.96 × 108,921.45 - Step 4: Simplify right side
408,442.44x = 66,735,405,063.38 - Step 5: Solve for x
x = 66,735,405,063.38/408,442.44 - Step 6: Final answer
x = 163,389.99
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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.