Finding the Fourth Proportional to 2,086,612.20, 3,129,140.70 and 1,453,645.80
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Solution
The fourth proportional to 2,086,612.20, 3,129,140.70 and 1,453,645.80 is: 2,179,926.98
Step by Step Solution
- Step 1: Write the proportion equation
2,086,612.20 : 3,129,140.70 = 1,453,645.80 : x - Step 2: Convert to fraction form
2,086,612.20/3,129,140.70 = 1,453,645.80/x - Step 3: Cross multiply
2,086,612.20x = 3,129,140.70 × 1,453,645.80 - Step 4: Simplify right side
2,086,612.20x = 4,548,662,236,164.06 - Step 5: Solve for x
x = 4,548,662,236,164.06/2,086,612.20 - Step 6: Final answer
x = 2,179,926.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.