Finding the Fourth Proportional to 2,991,558.13, 4,128,361.17 and 1,633,431.13
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Solution
The fourth proportional to 2,991,558.13, 4,128,361.17 and 1,633,431.13 is: 2,254,140.94
Step by Step Solution
- Step 1: Write the proportion equation
2,991,558.13 : 4,128,361.17 = 1,633,431.13 : x - Step 2: Convert to fraction form
2,991,558.13/4,128,361.17 = 1,633,431.13/x - Step 3: Cross multiply
2,991,558.13x = 4,128,361.17 × 1,633,431.13 - Step 4: Simplify right side
2,991,558.13x = 6,743,393,650,961.22 - Step 5: Solve for x
x = 6,743,393,650,961.22/2,991,558.13 - Step 6: Final answer
x = 2,254,140.94
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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.