Finding the Fourth Proportional to 1,305,969.18, 1,802,212.39 and 725,162.12
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Solution
The fourth proportional to 1,305,969.18, 1,802,212.39 and 725,162.12 is: 1,000,709.80
Step by Step Solution
- Step 1: Write the proportion equation
1,305,969.18 : 1,802,212.39 = 725,162.12 : x - Step 2: Convert to fraction form
1,305,969.18/1,802,212.39 = 725,162.12/x - Step 3: Cross multiply
1,305,969.18x = 1,802,212.39 × 725,162.12 - Step 4: Simplify right side
1,305,969.18x = 1,306,896,151,997.32 - Step 5: Solve for x
x = 1,306,896,151,997.32/1,305,969.18 - Step 6: Final answer
x = 1,000,709.80
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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.