Finding the Fourth Proportional to 2,128,956.59, 3,193,480.25 and 762,819.53
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Solution
The fourth proportional to 2,128,956.59, 3,193,480.25 and 762,819.53 is: 1,144,245.56
Step by Step Solution
- Step 1: Write the proportion equation
2,128,956.59 : 3,193,480.25 = 762,819.53 : x - Step 2: Convert to fraction form
2,128,956.59/3,193,480.25 = 762,819.53/x - Step 3: Cross multiply
2,128,956.59x = 3,193,480.25 × 762,819.53 - Step 4: Simplify right side
2,128,956.59x = 2,436,049,119,577.24 - Step 5: Solve for x
x = 2,436,049,119,577.24/2,128,956.59 - Step 6: Final answer
x = 1,144,245.56
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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.