Finding the Fourth Proportional to 2,511,792.20, 3,767,688.30 and 828,489.80
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Solution
The fourth proportional to 2,511,792.20, 3,767,688.30 and 828,489.80 is: 1,242,734.70
Step by Step Solution
- Step 1: Write the proportion equation
2,511,792.20 : 3,767,688.30 = 828,489.80 : x - Step 2: Convert to fraction form
2,511,792.20/3,767,688.30 = 828,489.80/x - Step 3: Cross multiply
2,511,792.20x = 3,767,688.30 × 828,489.80 - Step 4: Simplify right side
2,511,792.20x = 3,121,491,326,129.34 - Step 5: Solve for x
x = 3,121,491,326,129.34/2,511,792.20 - Step 6: Final answer
x = 1,242,734.70
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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.