Finding the Fourth Proportional to 398,642.37, 598,243.76 and 360,528.09
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Solution
The fourth proportional to 398,642.37, 598,243.76 and 360,528.09 is: 541,045.55
Step by Step Solution
- Step 1: Write the proportion equation
398,642.37 : 598,243.76 = 360,528.09 : x - Step 2: Convert to fraction form
398,642.37/598,243.76 = 360,528.09/x - Step 3: Cross multiply
398,642.37x = 598,243.76 × 360,528.09 - Step 4: Simplify right side
398,642.37x = 215,683,679,481.12 - Step 5: Solve for x
x = 215,683,679,481.12/398,642.37 - Step 6: Final answer
x = 541,045.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.