Finding the Fourth Proportional to 1,081,114.68, 1,491,690.72 and 645,447.23
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Solution
The fourth proportional to 1,081,114.68, 1,491,690.72 and 645,447.23 is: 890,569.39
Step by Step Solution
- Step 1: Write the proportion equation
1,081,114.68 : 1,491,690.72 = 645,447.23 : x - Step 2: Convert to fraction form
1,081,114.68/1,491,690.72 = 645,447.23/x - Step 3: Cross multiply
1,081,114.68x = 1,491,690.72 × 645,447.23 - Step 4: Simplify right side
1,081,114.68x = 962,807,643,240.71 - Step 5: Solve for x
x = 962,807,643,240.71/1,081,114.68 - Step 6: Final answer
x = 890,569.39
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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.