Finding the Fourth Proportional to 722,173.28, 996,586.97 and 399,876.44
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Solution
The fourth proportional to 722,173.28, 996,586.97 and 399,876.44 is: 551,822.75
Step by Step Solution
- Step 1: Write the proportion equation
722,173.28 : 996,586.97 = 399,876.44 : x - Step 2: Convert to fraction form
722,173.28/996,586.97 = 399,876.44/x - Step 3: Cross multiply
722,173.28x = 996,586.97 × 399,876.44 - Step 4: Simplify right side
722,173.28x = 398,511,642,731.67 - Step 5: Solve for x
x = 398,511,642,731.67/722,173.28 - Step 6: Final answer
x = 551,822.75
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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.