Finding the Fourth Proportional to 426,370.83, 639,497.93 and 126,897.63
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Solution
The fourth proportional to 426,370.83, 639,497.93 and 126,897.63 is: 190,329.09
Step by Step Solution
- Step 1: Write the proportion equation
426,370.83 : 639,497.93 = 126,897.63 : x - Step 2: Convert to fraction form
426,370.83/639,497.93 = 126,897.63/x - Step 3: Cross multiply
426,370.83x = 639,497.93 × 126,897.63 - Step 4: Simplify right side
426,370.83x = 81,150,771,072.42 - Step 5: Solve for x
x = 81,150,771,072.42/426,370.83 - Step 6: Final answer
x = 190,329.09
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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.