Finding the Fourth Proportional to 1,121,716.10, 1,682,574.15 and 997,713.20
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Solution
The fourth proportional to 1,121,716.10, 1,682,574.15 and 997,713.20 is: 1,496,569.80
Step by Step Solution
- Step 1: Write the proportion equation
1,121,716.10 : 1,682,574.15 = 997,713.20 : x - Step 2: Convert to fraction form
1,121,716.10/1,682,574.15 = 997,713.20/x - Step 3: Cross multiply
1,121,716.10x = 1,682,574.15 × 997,713.20 - Step 4: Simplify right side
1,121,716.10x = 1,678,726,439,433.78 - Step 5: Solve for x
x = 1,678,726,439,433.78/1,121,716.10 - Step 6: Final answer
x = 1,496,569.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.