Finding the Fourth Proportional to 3,642,871.29, 5,463,932.48 and 1,213,762.19
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Solution
The fourth proportional to 3,642,871.29, 5,463,932.48 and 1,213,762.19 is: 1,820,518.52
Step by Step Solution
- Step 1: Write the proportion equation
3,642,871.29 : 5,463,932.48 = 1,213,762.19 : x - Step 2: Convert to fraction form
3,642,871.29/5,463,932.48 = 1,213,762.19/x - Step 3: Cross multiply
3,642,871.29x = 5,463,932.48 × 1,213,762.19 - Step 4: Simplify right side
3,642,871.29x = 6,631,914,642,311.51 - Step 5: Solve for x
x = 6,631,914,642,311.51/3,642,871.29 - Step 6: Final answer
x = 1,820,518.52
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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.