Finding the Fourth Proportional to 1,879,861.23, 2,594,190.78 and 1,020,403.08
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Solution
The fourth proportional to 1,879,861.23, 2,594,190.78 and 1,020,403.08 is: 1,408,146.63
Step by Step Solution
- Step 1: Write the proportion equation
1,879,861.23 : 2,594,190.78 = 1,020,403.08 : x - Step 2: Convert to fraction form
1,879,861.23/2,594,190.78 = 1,020,403.08/x - Step 3: Cross multiply
1,879,861.23x = 2,594,190.78 × 1,020,403.08 - Step 4: Simplify right side
1,879,861.23x = 2,647,120,262,019.60 - Step 5: Solve for x
x = 2,647,120,262,019.60/1,879,861.23 - Step 6: Final answer
x = 1,408,146.63
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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.