Finding the Fourth Proportional to 2,821,863.68, 3,894,200.40 and 1,532,729.20
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Solution
The fourth proportional to 2,821,863.68, 3,894,200.40 and 1,532,729.20 is: 2,115,181.79
Step by Step Solution
- Step 1: Write the proportion equation
2,821,863.68 : 3,894,200.40 = 1,532,729.20 : x - Step 2: Convert to fraction form
2,821,863.68/3,894,200.40 = 1,532,729.20/x - Step 3: Cross multiply
2,821,863.68x = 3,894,200.40 × 1,532,729.20 - Step 4: Simplify right side
2,821,863.68x = 5,968,754,663,731.68 - Step 5: Solve for x
x = 5,968,754,663,731.68/2,821,863.68 - Step 6: Final answer
x = 2,115,181.79
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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.