Finding the Fourth Proportional to 1,320,020.92, 1,821,580.14 and 716,395.96
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Solution
The fourth proportional to 1,320,020.92, 1,821,580.14 and 716,395.96 is: 988,599.98
Step by Step Solution
- Step 1: Write the proportion equation
1,320,020.92 : 1,821,580.14 = 716,395.96 : x - Step 2: Convert to fraction form
1,320,020.92/1,821,580.14 = 716,395.96/x - Step 3: Cross multiply
1,320,020.92x = 1,821,580.14 × 716,395.96 - Step 4: Simplify right side
1,320,020.92x = 1,304,972,653,112.23 - Step 5: Solve for x
x = 1,304,972,653,112.23/1,320,020.92 - Step 6: Final answer
x = 988,599.98
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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.