Finding the Fourth Proportional to 2,725,821.10, 4,088,403.60 and 1,128,217.60
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Solution
The fourth proportional to 2,725,821.10, 4,088,403.60 and 1,128,217.60 is: 1,692,190.62
Step by Step Solution
- Step 1: Write the proportion equation
2,725,821.10 : 4,088,403.60 = 1,128,217.60 : x - Step 2: Convert to fraction form
2,725,821.10/4,088,403.60 = 1,128,217.60/x - Step 3: Cross multiply
2,725,821.10x = 4,088,403.60 × 1,128,217.60 - Step 4: Simplify right side
2,725,821.10x = 4,612,608,897,423.36 - Step 5: Solve for x
x = 4,612,608,897,423.36/2,725,821.10 - Step 6: Final answer
x = 1,692,190.62
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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.