Finding the Fourth Proportional to 413,568.45, 620,352.68 and 133,085.70
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Solution
The fourth proportional to 413,568.45, 620,352.68 and 133,085.70 is: 199,628.55
Step by Step Solution
- Step 1: Write the proportion equation
413,568.45 : 620,352.68 = 133,085.70 : x - Step 2: Convert to fraction form
413,568.45/620,352.68 = 133,085.70/x - Step 3: Cross multiply
413,568.45x = 620,352.68 × 133,085.70 - Step 4: Simplify right side
413,568.45x = 82,560,069,999.25 - Step 5: Solve for x
x = 82,560,069,999.25/413,568.45 - Step 6: Final answer
x = 199,628.55
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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.