Finding the Fourth Proportional to 713.06, 984.21 and 480.68
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Solution
The fourth proportional to 713.06, 984.21 and 480.68 is: 663.46
Step by Step Solution
- Step 1: Write the proportion equation
713.06 : 984.21 = 480.68 : x - Step 2: Convert to fraction form
713.06/984.21 = 480.68/x - Step 3: Cross multiply
713.06x = 984.21 × 480.68 - Step 4: Simplify right side
713.06x = 473,090.06 - Step 5: Solve for x
x = 473,090.06/713.06 - Step 6: Final answer
x = 663.46
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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.