Finding the Fourth Proportional to 1,568,911.31, 2,166,133.10 and 1,205,674.91
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Solution
The fourth proportional to 1,568,911.31, 2,166,133.10 and 1,205,674.91 is: 1,664,627.12
Step by Step Solution
- Step 1: Write the proportion equation
1,568,911.31 : 2,166,133.10 = 1,205,674.91 : x - Step 2: Convert to fraction form
1,568,911.31/2,166,133.10 = 1,205,674.91/x - Step 3: Cross multiply
1,568,911.31x = 2,166,133.10 × 1,205,674.91 - Step 4: Simplify right side
1,568,911.31x = 2,611,652,313,531.48 - Step 5: Solve for x
x = 2,611,652,313,531.48/1,568,911.31 - Step 6: Final answer
x = 1,664,627.12
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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.