Finding the Fourth Proportional to 398,013.28, 596,394.60 and 277,951.84
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Solution
The fourth proportional to 398,013.28, 596,394.60 and 277,951.84 is: 416,491.07
Step by Step Solution
- Step 1: Write the proportion equation
398,013.28 : 596,394.60 = 277,951.84 : x - Step 2: Convert to fraction form
398,013.28/596,394.60 = 277,951.84/x - Step 3: Cross multiply
398,013.28x = 596,394.60 × 277,951.84 - Step 4: Simplify right side
398,013.28x = 165,768,976,436.06 - Step 5: Solve for x
x = 165,768,976,436.06/398,013.28 - Step 6: Final answer
x = 416,491.07
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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.