Finding the Fourth Proportional to 658,687.28, 908,976.62 and 372,201.21
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Solution
The fourth proportional to 658,687.28, 908,976.62 and 372,201.21 is: 513,630.99
Step by Step Solution
- Step 1: Write the proportion equation
658,687.28 : 908,976.62 = 372,201.21 : x - Step 2: Convert to fraction form
658,687.28/908,976.62 = 372,201.21/x - Step 3: Cross multiply
658,687.28x = 908,976.62 × 372,201.21 - Step 4: Simplify right side
658,687.28x = 338,322,195,964.70 - Step 5: Solve for x
x = 338,322,195,964.70/658,687.28 - Step 6: Final answer
x = 513,630.99
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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.