Finding the Fourth Proportional to 3,211,276.25, 4,431,621.98 and 1,760,885.19
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Solution
The fourth proportional to 3,211,276.25, 4,431,621.98 and 1,760,885.19 is: 2,430,054.88
Step by Step Solution
- Step 1: Write the proportion equation
3,211,276.25 : 4,431,621.98 = 1,760,885.19 : x - Step 2: Convert to fraction form
3,211,276.25/4,431,621.98 = 1,760,885.19/x - Step 3: Cross multiply
3,211,276.25x = 4,431,621.98 × 1,760,885.19 - Step 4: Simplify right side
3,211,276.25x = 7,803,577,516,662.69 - Step 5: Solve for x
x = 7,803,577,516,662.69/3,211,276.25 - Step 6: Final answer
x = 2,430,054.88
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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.