Finding the Fourth Proportional to 1,821,727.53, 2,514,205.67 and 1,057,781.12
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Solution
The fourth proportional to 1,821,727.53, 2,514,205.67 and 1,057,781.12 is: 1,459,866.65
Step by Step Solution
- Step 1: Write the proportion equation
1,821,727.53 : 2,514,205.67 = 1,057,781.12 : x - Step 2: Convert to fraction form
1,821,727.53/2,514,205.67 = 1,057,781.12/x - Step 3: Cross multiply
1,821,727.53x = 2,514,205.67 × 1,057,781.12 - Step 4: Simplify right side
1,821,727.53x = 2,659,479,271,663.02 - Step 5: Solve for x
x = 2,659,479,271,663.02/1,821,727.53 - Step 6: Final answer
x = 1,459,866.65
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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.