Finding the Fourth Proportional to 518,197.68, 715,163.80 and 303,324.72
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Solution
The fourth proportional to 518,197.68, 715,163.80 and 303,324.72 is: 418,617.97
Step by Step Solution
- Step 1: Write the proportion equation
518,197.68 : 715,163.80 = 303,324.72 : x - Step 2: Convert to fraction form
518,197.68/715,163.80 = 303,324.72/x - Step 3: Cross multiply
518,197.68x = 715,163.80 × 303,324.72 - Step 4: Simplify right side
518,197.68x = 216,926,859,389.14 - Step 5: Solve for x
x = 216,926,859,389.14/518,197.68 - Step 6: Final answer
x = 418,617.97
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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.