Finding the Fourth Proportional to 1,971,826.62, 2,721,122.55 and 1,066,408.62
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Solution
The fourth proportional to 1,971,826.62, 2,721,122.55 and 1,066,408.62 is: 1,471,644.88
Step by Step Solution
- Step 1: Write the proportion equation
1,971,826.62 : 2,721,122.55 = 1,066,408.62 : x - Step 2: Convert to fraction form
1,971,826.62/2,721,122.55 = 1,066,408.62/x - Step 3: Cross multiply
1,971,826.62x = 2,721,122.55 × 1,066,408.62 - Step 4: Simplify right side
1,971,826.62x = 2,901,828,543,396.38 - Step 5: Solve for x
x = 2,901,828,543,396.38/1,971,826.62 - Step 6: Final answer
x = 1,471,644.88
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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.