Finding the Fourth Proportional to 655.48, 980.79 and 538.84
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Solution
The fourth proportional to 655.48, 980.79 and 538.84 is: 806.26
Step by Step Solution
- Step 1: Write the proportion equation
655.48 : 980.79 = 538.84 : x - Step 2: Convert to fraction form
655.48/980.79 = 538.84/x - Step 3: Cross multiply
655.48x = 980.79 × 538.84 - Step 4: Simplify right side
655.48x = 528,488.88 - Step 5: Solve for x
x = 528,488.88/655.48 - Step 6: Final answer
x = 806.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.