Finding the Third Proportional to 558 and 912
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Solution
The third proportional to 558 and 912 is: 1,490.58
Step by Step Solution
- Step 1: Write the proportion equation
558 : 912 = 912 : x - Step 2: Convert to fraction form
558/912 = 912/x - Step 3: Cross multiply
558x = 912 × 912 - Step 4: Simplify right side
558x = 831,744 - Step 5: Solve for x
x = 831,744/558 - Step 6: Final answer
x = 1,490.58
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Why These Related Problems?
These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.