Finding the Fourth Proportional to 398,431.75, 597,823.71 and 208,846.79
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Solution
The fourth proportional to 398,431.75, 597,823.71 and 208,846.79 is: 313,362.48
Step by Step Solution
- Step 1: Write the proportion equation
398,431.75 : 597,823.71 = 208,846.79 : x - Step 2: Convert to fraction form
398,431.75/597,823.71 = 208,846.79/x - Step 3: Cross multiply
398,431.75x = 597,823.71 × 208,846.79 - Step 4: Simplify right side
398,431.75x = 124,853,561,288.94 - Step 5: Solve for x
x = 124,853,561,288.94/398,431.75 - Step 6: Final answer
x = 313,362.48
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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.