Finding the Fourth Proportional to 2,915,793.60, 4,372,135.20 and 1,230,993.60
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Solution
The fourth proportional to 2,915,793.60, 4,372,135.20 and 1,230,993.60 is: 1,845,833.82
Step by Step Solution
- Step 1: Write the proportion equation
2,915,793.60 : 4,372,135.20 = 1,230,993.60 : x - Step 2: Convert to fraction form
2,915,793.60/4,372,135.20 = 1,230,993.60/x - Step 3: Cross multiply
2,915,793.60x = 4,372,135.20 × 1,230,993.60 - Step 4: Simplify right side
2,915,793.60x = 5,382,070,449,534.72 - Step 5: Solve for x
x = 5,382,070,449,534.72/2,915,793.60 - Step 6: Final answer
x = 1,845,833.82
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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.