Finding the Fourth Proportional to 1,987,497.76, 2,742,703.84 and 1,160,713.48
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Solution
The fourth proportional to 1,987,497.76, 2,742,703.84 and 1,160,713.48 is: 1,601,759.45
Step by Step Solution
- Step 1: Write the proportion equation
1,987,497.76 : 2,742,703.84 = 1,160,713.48 : x - Step 2: Convert to fraction form
1,987,497.76/2,742,703.84 = 1,160,713.48/x - Step 3: Cross multiply
1,987,497.76x = 2,742,703.84 × 1,160,713.48 - Step 4: Simplify right side
1,987,497.76x = 3,183,493,318,735.76 - Step 5: Solve for x
x = 3,183,493,318,735.76/1,987,497.76 - Step 6: Final answer
x = 1,601,759.45
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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.