Finding the Fourth Proportional to 2,137,812.70, 3,206,719.05 and 1,325,998.30
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Solution
The fourth proportional to 2,137,812.70, 3,206,719.05 and 1,325,998.30 is: 1,988,997.45
Step by Step Solution
- Step 1: Write the proportion equation
2,137,812.70 : 3,206,719.05 = 1,325,998.30 : x - Step 2: Convert to fraction form
2,137,812.70/3,206,719.05 = 1,325,998.30/x - Step 3: Cross multiply
2,137,812.70x = 3,206,719.05 × 1,325,998.30 - Step 4: Simplify right side
2,137,812.70x = 4,252,104,008,877.62 - Step 5: Solve for x
x = 4,252,104,008,877.62/2,137,812.70 - Step 6: Final answer
x = 1,988,997.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.