Finding the Fourth Proportional to 2,166,229.44, 2,989,428.12 and 1,247,951.88
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Solution
The fourth proportional to 2,166,229.44, 2,989,428.12 and 1,247,951.88 is: 1,722,191.74
Step by Step Solution
- Step 1: Write the proportion equation
2,166,229.44 : 2,989,428.12 = 1,247,951.88 : x - Step 2: Convert to fraction form
2,166,229.44/2,989,428.12 = 1,247,951.88/x - Step 3: Cross multiply
2,166,229.44x = 2,989,428.12 × 1,247,951.88 - Step 4: Simplify right side
2,166,229.44x = 3,730,662,442,478.87 - Step 5: Solve for x
x = 3,730,662,442,478.87/2,166,229.44 - Step 6: Final answer
x = 1,722,191.74
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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.