Finding the Fourth Proportional to 2,380,331.21, 3,284,880.89 and 1,292,612.18
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Solution
The fourth proportional to 2,380,331.21, 3,284,880.89 and 1,292,612.18 is: 1,783,817.74
Step by Step Solution
- Step 1: Write the proportion equation
2,380,331.21 : 3,284,880.89 = 1,292,612.18 : x - Step 2: Convert to fraction form
2,380,331.21/3,284,880.89 = 1,292,612.18/x - Step 3: Cross multiply
2,380,331.21x = 3,284,880.89 × 1,292,612.18 - Step 4: Simplify right side
2,380,331.21x = 4,246,077,025,375.78 - Step 5: Solve for x
x = 4,246,077,025,375.78/2,380,331.21 - Step 6: Final answer
x = 1,783,817.74
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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.