Finding the Fourth Proportional to 3,205,105.20, 4,807,657.80 and 961,243.20
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Solution
The fourth proportional to 3,205,105.20, 4,807,657.80 and 961,243.20 is: 1,441,864.80
Step by Step Solution
- Step 1: Write the proportion equation
3,205,105.20 : 4,807,657.80 = 961,243.20 : x - Step 2: Convert to fraction form
3,205,105.20/4,807,657.80 = 961,243.20/x - Step 3: Cross multiply
3,205,105.20x = 4,807,657.80 × 961,243.20 - Step 4: Simplify right side
3,205,105.20x = 4,621,328,368,176.96 - Step 5: Solve for x
x = 4,621,328,368,176.96/3,205,105.20 - Step 6: Final answer
x = 1,441,864.80
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1.5x scale
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.