Finding the Fourth Proportional to 641,163.84, 884,838.40 and 386,597.12
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Solution
The fourth proportional to 641,163.84, 884,838.40 and 386,597.12 is: 533,523.50
Step by Step Solution
- Step 1: Write the proportion equation
641,163.84 : 884,838.40 = 386,597.12 : x - Step 2: Convert to fraction form
641,163.84/884,838.40 = 386,597.12/x - Step 3: Cross multiply
641,163.84x = 884,838.40 × 386,597.12 - Step 4: Simplify right side
641,163.84x = 342,075,977,105.41 - Step 5: Solve for x
x = 342,075,977,105.41/641,163.84 - Step 6: Final answer
x = 533,523.50
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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.