Finding the Fourth Proportional to 722,202.34, 996,638.62 and 399,912.44
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Solution
The fourth proportional to 722,202.34, 996,638.62 and 399,912.44 is: 551,878.83
Step by Step Solution
- Step 1: Write the proportion equation
722,202.34 : 996,638.62 = 399,912.44 : x - Step 2: Convert to fraction form
722,202.34/996,638.62 = 399,912.44/x - Step 3: Cross multiply
722,202.34x = 996,638.62 × 399,912.44 - Step 4: Simplify right side
722,202.34x = 398,568,182,322.43 - Step 5: Solve for x
x = 398,568,182,322.43/722,202.34 - Step 6: Final answer
x = 551,878.83
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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.