Finding the Fourth Proportional to 531.98, 734.33 and 456.99
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Solution
The fourth proportional to 531.98, 734.33 and 456.99 is: 630.82
Step by Step Solution
- Step 1: Write the proportion equation
531.98 : 734.33 = 456.99 : x - Step 2: Convert to fraction form
531.98/734.33 = 456.99/x - Step 3: Cross multiply
531.98x = 734.33 × 456.99 - Step 4: Simplify right side
531.98x = 335,583.99 - Step 5: Solve for x
x = 335,583.99/531.98 - Step 6: Final answer
x = 630.82
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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.