Finding the Fourth Proportional to 871.68, 1,202.82 and 539.99
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Solution
The fourth proportional to 871.68, 1,202.82 and 539.99 is: 745.12
Step by Step Solution
- Step 1: Write the proportion equation
871.68 : 1,202.82 = 539.99 : x - Step 2: Convert to fraction form
871.68/1,202.82 = 539.99/x - Step 3: Cross multiply
871.68x = 1,202.82 × 539.99 - Step 4: Simplify right side
871.68x = 649,504.76 - Step 5: Solve for x
x = 649,504.76/871.68 - Step 6: Final answer
x = 745.12
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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.