Finding the Fourth Proportional to 2,079,317.20, 3,117,420.60 and 1,133,755.60
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Solution
The fourth proportional to 2,079,317.20, 3,117,420.60 and 1,133,755.60 is: 1,699,785.42
Step by Step Solution
- Step 1: Write the proportion equation
2,079,317.20 : 3,117,420.60 = 1,133,755.60 : x - Step 2: Convert to fraction form
2,079,317.20/3,117,420.60 = 1,133,755.60/x - Step 3: Cross multiply
2,079,317.20x = 3,117,420.60 × 1,133,755.60 - Step 4: Simplify right side
2,079,317.20x = 3,534,393,062,805.36 - Step 5: Solve for x
x = 3,534,393,062,805.36/2,079,317.20 - Step 6: Final answer
x = 1,699,785.42
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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.