Finding the Fourth Proportional to 512,584.88, 707,352.68 and 283,137.60
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Solution
The fourth proportional to 512,584.88, 707,352.68 and 283,137.60 is: 390,721.90
Step by Step Solution
- Step 1: Write the proportion equation
512,584.88 : 707,352.68 = 283,137.60 : x - Step 2: Convert to fraction form
512,584.88/707,352.68 = 283,137.60/x - Step 3: Cross multiply
512,584.88x = 707,352.68 × 283,137.60 - Step 4: Simplify right side
512,584.88x = 200,278,140,168.77 - Step 5: Solve for x
x = 200,278,140,168.77/512,584.88 - Step 6: Final answer
x = 390,721.90
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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.