Finding the Fourth Proportional to 1,642,406.91, 2,448,428.66 and 1,616,523.77
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Solution
The fourth proportional to 1,642,406.91, 2,448,428.66 and 1,616,523.77 is: 2,409,843.19
Step by Step Solution
- Step 1: Write the proportion equation
1,642,406.91 : 2,448,428.66 = 1,616,523.77 : x - Step 2: Convert to fraction form
1,642,406.91/2,448,428.66 = 1,616,523.77/x - Step 3: Cross multiply
1,642,406.91x = 2,448,428.66 × 1,616,523.77 - Step 4: Simplify right side
1,642,406.91x = 3,957,943,107,714.49 - Step 5: Solve for x
x = 3,957,943,107,714.49/1,642,406.91 - Step 6: Final answer
x = 2,409,843.19
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.