Finding the Fourth Proportional to 2,137,756.82, 2,950,161.63 and 1,207,389.92
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Solution
The fourth proportional to 2,137,756.82, 2,950,161.63 and 1,207,389.92 is: 1,666,230.41
Step by Step Solution
- Step 1: Write the proportion equation
2,137,756.82 : 2,950,161.63 = 1,207,389.92 : x - Step 2: Convert to fraction form
2,137,756.82/2,950,161.63 = 1,207,389.92/x - Step 3: Cross multiply
2,137,756.82x = 2,950,161.63 × 1,207,389.92 - Step 4: Simplify right side
2,137,756.82x = 3,561,995,414,432.77 - Step 5: Solve for x
x = 3,561,995,414,432.77/2,137,756.82 - Step 6: Final answer
x = 1,666,230.41
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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.