Finding the Fourth Proportional to 1,211,362.22, 1,814,910.66 and 1,079,416.70
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Solution
The fourth proportional to 1,211,362.22, 1,814,910.66 and 1,079,416.70 is: 1,617,224.68
Step by Step Solution
- Step 1: Write the proportion equation
1,211,362.22 : 1,814,910.66 = 1,079,416.70 : x - Step 2: Convert to fraction form
1,211,362.22/1,814,910.66 = 1,079,416.70/x - Step 3: Cross multiply
1,211,362.22x = 1,814,910.66 × 1,079,416.70 - Step 4: Simplify right side
1,211,362.22x = 1,959,044,875,412.02 - Step 5: Solve for x
x = 1,959,044,875,412.02/1,211,362.22 - Step 6: Final answer
x = 1,617,224.68
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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.