Finding the Fourth Proportional to 2,021,431.62, 2,789,577.45 and 1,116,013.62
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Solution
The fourth proportional to 2,021,431.62, 2,789,577.45 and 1,116,013.62 is: 1,540,099.80
Step by Step Solution
- Step 1: Write the proportion equation
2,021,431.62 : 2,789,577.45 = 1,116,013.62 : x - Step 2: Convert to fraction form
2,021,431.62/2,789,577.45 = 1,116,013.62/x - Step 3: Cross multiply
2,021,431.62x = 2,789,577.45 × 1,116,013.62 - Step 4: Simplify right side
2,021,431.62x = 3,113,206,428,244.87 - Step 5: Solve for x
x = 3,113,206,428,244.87/2,021,431.62 - Step 6: Final answer
x = 1,540,099.80
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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.