Finding the Third Proportional to 478 and 612
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Solution
The third proportional to 478 and 612 is: 783.56
Step by Step Solution
- Step 1: Write the proportion equation
478 : 612 = 612 : x - Step 2: Convert to fraction form
478/612 = 612/x - Step 3: Cross multiply
478x = 612 × 612 - Step 4: Simplify right side
478x = 374,544 - Step 5: Solve for x
x = 374,544/478 - Step 6: Final answer
x = 783.56
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These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.