Finding the Fourth Proportional to 648,163.20, 972,244.80 and 448,708.80
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Solution
The fourth proportional to 648,163.20, 972,244.80 and 448,708.80 is: 673,063.20
Step by Step Solution
- Step 1: Write the proportion equation
648,163.20 : 972,244.80 = 448,708.80 : x - Step 2: Convert to fraction form
648,163.20/972,244.80 = 448,708.80/x - Step 3: Cross multiply
648,163.20x = 972,244.80 × 448,708.80 - Step 4: Simplify right side
648,163.20x = 436,254,797,514.24 - Step 5: Solve for x
x = 436,254,797,514.24/648,163.20 - Step 6: Final answer
x = 673,063.20
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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.