Finding the Fourth Proportional to 2,279,581.21, 3,419,371.13 and 859,305.14
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Solution
The fourth proportional to 2,279,581.21, 3,419,371.13 and 859,305.14 is: 1,288,957.45
Step by Step Solution
- Step 1: Write the proportion equation
2,279,581.21 : 3,419,371.13 = 859,305.14 : x - Step 2: Convert to fraction form
2,279,581.21/3,419,371.13 = 859,305.14/x - Step 3: Cross multiply
2,279,581.21x = 3,419,371.13 × 859,305.14 - Step 4: Simplify right side
2,279,581.21x = 2,938,283,179,005.87 - Step 5: Solve for x
x = 2,938,283,179,005.87/2,279,581.21 - Step 6: Final answer
x = 1,288,957.45
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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.