Finding the Fourth Proportional to 813,163.68, 1,219,153.68 and 339,983.28
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Solution
The fourth proportional to 813,163.68, 1,219,153.68 and 339,983.28 is: 509,727.47
Step by Step Solution
- Step 1: Write the proportion equation
813,163.68 : 1,219,153.68 = 339,983.28 : x - Step 2: Convert to fraction form
813,163.68/1,219,153.68 = 339,983.28/x - Step 3: Cross multiply
813,163.68x = 1,219,153.68 × 339,983.28 - Step 4: Simplify right side
813,163.68x = 414,491,866,950.47 - Step 5: Solve for x
x = 414,491,866,950.47/813,163.68 - Step 6: Final answer
x = 509,727.47
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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.