Finding the Fourth Proportional to 1,221,736.36, 1,832,165.40 and 422,800.96
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Solution
The fourth proportional to 1,221,736.36, 1,832,165.40 and 422,800.96 is: 634,049.47
Step by Step Solution
- Step 1: Write the proportion equation
1,221,736.36 : 1,832,165.40 = 422,800.96 : x - Step 2: Convert to fraction form
1,221,736.36/1,832,165.40 = 422,800.96/x - Step 3: Cross multiply
1,221,736.36x = 1,832,165.40 × 422,800.96 - Step 4: Simplify right side
1,221,736.36x = 774,641,289,998.78 - Step 5: Solve for x
x = 774,641,289,998.78/1,221,736.36 - Step 6: Final answer
x = 634,049.47
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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.