Finding the Fourth Proportional to 1,761,846.40, 2,431,518.18 and 987,608.26
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Solution
The fourth proportional to 1,761,846.40, 2,431,518.18 and 987,608.26 is: 1,362,994.78
Step by Step Solution
- Step 1: Write the proportion equation
1,761,846.40 : 2,431,518.18 = 987,608.26 : x - Step 2: Convert to fraction form
1,761,846.40/2,431,518.18 = 987,608.26/x - Step 3: Cross multiply
1,761,846.40x = 2,431,518.18 × 987,608.26 - Step 4: Simplify right side
1,761,846.40x = 2,401,387,438,908.17 - Step 5: Solve for x
x = 2,401,387,438,908.17/1,761,846.40 - Step 6: Final answer
x = 1,362,994.78
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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.