Finding the Fourth Proportional to 1,431,679.25, 1,975,699.62 and 787,093.81
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Solution
The fourth proportional to 1,431,679.25, 1,975,699.62 and 787,093.81 is: 1,086,179.70
Step by Step Solution
- Step 1: Write the proportion equation
1,431,679.25 : 1,975,699.62 = 787,093.81 : x - Step 2: Convert to fraction form
1,431,679.25/1,975,699.62 = 787,093.81/x - Step 3: Cross multiply
1,431,679.25x = 1,975,699.62 × 787,093.81 - Step 4: Simplify right side
1,431,679.25x = 1,555,060,936,382.10 - Step 5: Solve for x
x = 1,555,060,936,382.10/1,431,679.25 - Step 6: Final answer
x = 1,086,179.70
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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.