Finding the Fourth Proportional to 720,540.98, 994,350.50 and 393,854.44
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Solution
The fourth proportional to 720,540.98, 994,350.50 and 393,854.44 is: 543,521.28
Step by Step Solution
- Step 1: Write the proportion equation
720,540.98 : 994,350.50 = 393,854.44 : x - Step 2: Convert to fraction form
720,540.98/994,350.50 = 393,854.44/x - Step 3: Cross multiply
720,540.98x = 994,350.50 × 393,854.44 - Step 4: Simplify right side
720,540.98x = 391,629,357,371.95 - Step 5: Solve for x
x = 391,629,357,371.95/720,540.98 - Step 6: Final answer
x = 543,521.28
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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.