Finding the Fourth Proportional to 2,183,528.88, 3,013,229.64 and 1,216,638.36
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Solution
The fourth proportional to 2,183,528.88, 3,013,229.64 and 1,216,638.36 is: 1,678,938.53
Step by Step Solution
- Step 1: Write the proportion equation
2,183,528.88 : 3,013,229.64 = 1,216,638.36 : x - Step 2: Convert to fraction form
2,183,528.88/3,013,229.64 = 1,216,638.36/x - Step 3: Cross multiply
2,183,528.88x = 3,013,229.64 × 1,216,638.36 - Step 4: Simplify right side
2,183,528.88x = 3,666,010,767,512.99 - Step 5: Solve for x
x = 3,666,010,767,512.99/2,183,528.88 - Step 6: Final answer
x = 1,678,938.53
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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.