Finding the Fourth Proportional to 1,131,428.40, 1,560,982.68 and 701,553.84
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Solution
The fourth proportional to 1,131,428.40, 1,560,982.68 and 701,553.84 is: 967,903.40
Step by Step Solution
- Step 1: Write the proportion equation
1,131,428.40 : 1,560,982.68 = 701,553.84 : x - Step 2: Convert to fraction form
1,131,428.40/1,560,982.68 = 701,553.84/x - Step 3: Cross multiply
1,131,428.40x = 1,560,982.68 × 701,553.84 - Step 4: Simplify right side
1,131,428.40x = 1,095,113,393,327.49 - Step 5: Solve for x
x = 1,095,113,393,327.49/1,131,428.40 - Step 6: Final answer
x = 967,903.40
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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.