Finding the Fourth Proportional to 2,187,575.92, 3,019,026.64 and 1,207,709.70
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Solution
The fourth proportional to 2,187,575.92, 3,019,026.64 and 1,207,709.70 is: 1,666,734.27
Step by Step Solution
- Step 1: Write the proportion equation
2,187,575.92 : 3,019,026.64 = 1,207,709.70 : x - Step 2: Convert to fraction form
2,187,575.92/3,019,026.64 = 1,207,709.70/x - Step 3: Cross multiply
2,187,575.92x = 3,019,026.64 × 1,207,709.70 - Step 4: Simplify right side
2,187,575.92x = 3,646,107,757,686.41 - Step 5: Solve for x
x = 3,646,107,757,686.41/2,187,575.92 - Step 6: Final answer
x = 1,666,734.27
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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.