Finding the Fourth Proportional to 397,203.20, 547,613.70 and 328,968.80
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Solution
The fourth proportional to 397,203.20, 547,613.70 and 328,968.80 is: 453,540.71
Step by Step Solution
- Step 1: Write the proportion equation
397,203.20 : 547,613.70 = 328,968.80 : x - Step 2: Convert to fraction form
397,203.20/547,613.70 = 328,968.80/x - Step 3: Cross multiply
397,203.20x = 547,613.70 × 328,968.80 - Step 4: Simplify right side
397,203.20x = 180,147,821,752.56 - Step 5: Solve for x
x = 180,147,821,752.56/397,203.20 - Step 6: Final answer
x = 453,540.71
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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.