Finding the Fourth Proportional to 1,099,676.80, 1,649,806.80 and 389,630.80
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Solution
The fourth proportional to 1,099,676.80, 1,649,806.80 and 389,630.80 is: 584,549.52
Step by Step Solution
- Step 1: Write the proportion equation
1,099,676.80 : 1,649,806.80 = 389,630.80 : x - Step 2: Convert to fraction form
1,099,676.80/1,649,806.80 = 389,630.80/x - Step 3: Cross multiply
1,099,676.80x = 1,649,806.80 × 389,630.80 - Step 4: Simplify right side
1,099,676.80x = 642,815,543,329.44 - Step 5: Solve for x
x = 642,815,543,329.44/1,099,676.80 - Step 6: Final answer
x = 584,549.52
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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.