Finding the Fourth Proportional to 639,548.69, 882,554.06 and 353,062.63
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Solution
The fourth proportional to 639,548.69, 882,554.06 and 353,062.63 is: 487,213.66
Step by Step Solution
- Step 1: Write the proportion equation
639,548.69 : 882,554.06 = 353,062.63 : x - Step 2: Convert to fraction form
639,548.69/882,554.06 = 353,062.63/x - Step 3: Cross multiply
639,548.69x = 882,554.06 × 353,062.63 - Step 4: Simplify right side
639,548.69x = 311,596,857,540.78 - Step 5: Solve for x
x = 311,596,857,540.78/639,548.69 - Step 6: Final answer
x = 487,213.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.