Finding the Fourth Proportional to 412,934.28, 619,343.10 and 132,415.08
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Solution
The fourth proportional to 412,934.28, 619,343.10 and 132,415.08 is: 198,603.92
Step by Step Solution
- Step 1: Write the proportion equation
412,934.28 : 619,343.10 = 132,415.08 : x - Step 2: Convert to fraction form
412,934.28/619,343.10 = 132,415.08/x - Step 3: Cross multiply
412,934.28x = 619,343.10 × 132,415.08 - Step 4: Simplify right side
412,934.28x = 82,010,366,133.95 - Step 5: Solve for x
x = 82,010,366,133.95/412,934.28 - Step 6: Final answer
x = 198,603.92
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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.