Finding the Fourth Proportional to 1,331,980.99, 1,998,075.34 and 479,163.53
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Solution
The fourth proportional to 1,331,980.99, 1,998,075.34 and 479,163.53 is: 718,782.65
Step by Step Solution
- Step 1: Write the proportion equation
1,331,980.99 : 1,998,075.34 = 479,163.53 : x - Step 2: Convert to fraction form
1,331,980.99/1,998,075.34 = 479,163.53/x - Step 3: Cross multiply
1,331,980.99x = 1,998,075.34 × 479,163.53 - Step 4: Simplify right side
1,331,980.99x = 957,404,821,932.07 - Step 5: Solve for x
x = 957,404,821,932.07/1,331,980.99 - Step 6: Final answer
x = 718,782.65
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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.