Finding the Fourth Proportional to 3,409,745.12, 4,705,472.76 and 1,860,992.72
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Solution
The fourth proportional to 3,409,745.12, 4,705,472.76 and 1,860,992.72 is: 2,568,183.32
Step by Step Solution
- Step 1: Write the proportion equation
3,409,745.12 : 4,705,472.76 = 1,860,992.72 : x - Step 2: Convert to fraction form
3,409,745.12/4,705,472.76 = 1,860,992.72/x - Step 3: Cross multiply
3,409,745.12x = 4,705,472.76 × 1,860,992.72 - Step 4: Simplify right side
3,409,745.12x = 8,756,850,550,518.31 - Step 5: Solve for x
x = 8,756,850,550,518.31/3,409,745.12 - Step 6: Final answer
x = 2,568,183.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.