Finding the Fourth Proportional to 2,087,712.92, 2,882,431.68 and 1,603,412.84
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Solution
The fourth proportional to 2,087,712.92, 2,882,431.68 and 1,603,412.84 is: 2,213,775.62
Step by Step Solution
- Step 1: Write the proportion equation
2,087,712.92 : 2,882,431.68 = 1,603,412.84 : x - Step 2: Convert to fraction form
2,087,712.92/2,882,431.68 = 1,603,412.84/x - Step 3: Cross multiply
2,087,712.92x = 2,882,431.68 × 1,603,412.84 - Step 4: Simplify right side
2,087,712.92x = 4,621,727,966,134.77 - Step 5: Solve for x
x = 4,621,727,966,134.77/2,087,712.92 - Step 6: Final answer
x = 2,213,775.62
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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.