Finding the Fourth Proportional to 1,261,923.12, 1,741,497.84 and 718,140.96
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Solution
The fourth proportional to 1,261,923.12, 1,741,497.84 and 718,140.96 is: 991,059.53
Step by Step Solution
- Step 1: Write the proportion equation
1,261,923.12 : 1,741,497.84 = 718,140.96 : x - Step 2: Convert to fraction form
1,261,923.12/1,741,497.84 = 718,140.96/x - Step 3: Cross multiply
1,261,923.12x = 1,741,497.84 × 718,140.96 - Step 4: Simplify right side
1,261,923.12x = 1,250,640,930,655.53 - Step 5: Solve for x
x = 1,250,640,930,655.53/1,261,923.12 - Step 6: Final answer
x = 991,059.53
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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.