Finding the Fourth Proportional to 4,138,427.20, 6,207,640.80 and 1,146,611.20
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Solution
The fourth proportional to 4,138,427.20, 6,207,640.80 and 1,146,611.20 is: 1,719,916.80
Step by Step Solution
- Step 1: Write the proportion equation
4,138,427.20 : 6,207,640.80 = 1,146,611.20 : x - Step 2: Convert to fraction form
4,138,427.20/6,207,640.80 = 1,146,611.20/x - Step 3: Cross multiply
4,138,427.20x = 6,207,640.80 × 1,146,611.20 - Step 4: Simplify right side
4,138,427.20x = 7,117,750,466,856.96 - Step 5: Solve for x
x = 7,117,750,466,856.96/4,138,427.20 - Step 6: Final answer
x = 1,719,916.80
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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.