Finding the Fourth Proportional to 1,603,929.06, 2,405,872.84 and 389,515.64
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Solution
The fourth proportional to 1,603,929.06, 2,405,872.84 and 389,515.64 is: 584,268.42
Step by Step Solution
- Step 1: Write the proportion equation
1,603,929.06 : 2,405,872.84 = 389,515.64 : x - Step 2: Convert to fraction form
1,603,929.06/2,405,872.84 = 389,515.64/x - Step 3: Cross multiply
1,603,929.06x = 2,405,872.84 × 389,515.64 - Step 4: Simplify right side
1,603,929.06x = 937,125,099,031.22 - Step 5: Solve for x
x = 937,125,099,031.22/1,603,929.06 - Step 6: Final answer
x = 584,268.42
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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.