Finding the Fourth Proportional to 4,163,979.60, 6,245,969.40 and 1,324,378.80
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Solution
The fourth proportional to 4,163,979.60, 6,245,969.40 and 1,324,378.80 is: 1,986,568.20
Step by Step Solution
- Step 1: Write the proportion equation
4,163,979.60 : 6,245,969.40 = 1,324,378.80 : x - Step 2: Convert to fraction form
4,163,979.60/6,245,969.40 = 1,324,378.80/x - Step 3: Cross multiply
4,163,979.60x = 6,245,969.40 × 1,324,378.80 - Step 4: Simplify right side
4,163,979.60x = 8,272,029,458,808.72 - Step 5: Solve for x
x = 8,272,029,458,808.72/4,163,979.60 - Step 6: Final answer
x = 1,986,568.20
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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.