Finding the Fourth Proportional to 3,615,321.12, 4,989,585.60 and 2,087,425.68
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Solution
The fourth proportional to 3,615,321.12, 4,989,585.60 and 2,087,425.68 is: 2,880,902.90
Step by Step Solution
- Step 1: Write the proportion equation
3,615,321.12 : 4,989,585.60 = 2,087,425.68 : x - Step 2: Convert to fraction form
3,615,321.12/4,989,585.60 = 2,087,425.68/x - Step 3: Cross multiply
3,615,321.12x = 4,989,585.60 × 2,087,425.68 - Step 4: Simplify right side
3,615,321.12x = 10,415,389,113,998.21 - Step 5: Solve for x
x = 10,415,389,113,998.21/3,615,321.12 - Step 6: Final answer
x = 2,880,902.90
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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.