Finding the Fourth Proportional to 2,269,408.12, 3,131,763.26 and 1,236,915.95
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Solution
The fourth proportional to 2,269,408.12, 3,131,763.26 and 1,236,915.95 is: 1,706,933.15
Step by Step Solution
- Step 1: Write the proportion equation
2,269,408.12 : 3,131,763.26 = 1,236,915.95 : x - Step 2: Convert to fraction form
2,269,408.12/3,131,763.26 = 1,236,915.95/x - Step 3: Cross multiply
2,269,408.12x = 3,131,763.26 × 1,236,915.95 - Step 4: Simplify right side
2,269,408.12x = 3,873,727,935,995.57 - Step 5: Solve for x
x = 3,873,727,935,995.57/2,269,408.12 - Step 6: Final answer
x = 1,706,933.15
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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.