Finding the Fourth Proportional to 2,166,367.66, 2,989,755.70 and 1,199,587.90
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Solution
The fourth proportional to 2,166,367.66, 2,989,755.70 and 1,199,587.90 is: 1,655,524.51
Step by Step Solution
- Step 1: Write the proportion equation
2,166,367.66 : 2,989,755.70 = 1,199,587.90 : x - Step 2: Convert to fraction form
2,166,367.66/2,989,755.70 = 1,199,587.90/x - Step 3: Cross multiply
2,166,367.66x = 2,989,755.70 × 1,199,587.90 - Step 4: Simplify right side
2,166,367.66x = 3,586,474,761,676.03 - Step 5: Solve for x
x = 3,586,474,761,676.03/2,166,367.66 - Step 6: Final answer
x = 1,655,524.51
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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.