Finding the Fourth Proportional to 1,275,540, 1,760,117.49 and 785,430.96
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Solution
The fourth proportional to 1,275,540, 1,760,117.49 and 785,430.96 is: 1,083,816.09
Step by Step Solution
- Step 1: Write the proportion equation
1,275,540 : 1,760,117.49 = 785,430.96 : x - Step 2: Convert to fraction form
1,275,540/1,760,117.49 = 785,430.96/x - Step 3: Cross multiply
1,275,540x = 1,760,117.49 × 785,430.96 - Step 4: Simplify right side
1,275,540x = 1,382,450,769,883.49 - Step 5: Solve for x
x = 1,382,450,769,883.49/1,275,540 - Step 6: Final answer
x = 1,083,816.09
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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.