Finding the Fourth Proportional to 1,288,728.92, 1,778,341.66 and 744,899.96
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Solution
The fourth proportional to 1,288,728.92, 1,778,341.66 and 744,899.96 is: 1,027,901.69
Step by Step Solution
- Step 1: Write the proportion equation
1,288,728.92 : 1,778,341.66 = 744,899.96 : x - Step 2: Convert to fraction form
1,288,728.92/1,778,341.66 = 744,899.96/x - Step 3: Cross multiply
1,288,728.92x = 1,778,341.66 × 744,899.96 - Step 4: Simplify right side
1,288,728.92x = 1,324,686,631,400.33 - Step 5: Solve for x
x = 1,324,686,631,400.33/1,288,728.92 - Step 6: Final answer
x = 1,027,901.69
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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.