Finding the Fourth Proportional to 1,678,829.91, 2,515,860.18 and 1,293,120.51
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Solution
The fourth proportional to 1,678,829.91, 2,515,860.18 and 1,293,120.51 is: 1,937,843.96
Step by Step Solution
- Step 1: Write the proportion equation
1,678,829.91 : 2,515,860.18 = 1,293,120.51 : x - Step 2: Convert to fraction form
1,678,829.91/2,515,860.18 = 1,293,120.51/x - Step 3: Cross multiply
1,678,829.91x = 2,515,860.18 × 1,293,120.51 - Step 4: Simplify right side
1,678,829.91x = 3,253,310,399,050.29 - Step 5: Solve for x
x = 3,253,310,399,050.29/1,678,829.91 - Step 6: Final answer
x = 1,937,843.96
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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.