Finding the Fourth Proportional to 639,517.47, 882,536.02 and 349,129.49
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Solution
The fourth proportional to 639,517.47, 882,536.02 and 349,129.49 is: 481,799.74
Step by Step Solution
- Step 1: Write the proportion equation
639,517.47 : 882,536.02 = 349,129.49 : x - Step 2: Convert to fraction form
639,517.47/882,536.02 = 349,129.49/x - Step 3: Cross multiply
639,517.47x = 882,536.02 × 349,129.49 - Step 4: Simplify right side
639,517.47x = 308,119,350,569.23 - Step 5: Solve for x
x = 308,119,350,569.23/639,517.47 - Step 6: Final answer
x = 481,799.74
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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.