Finding the Fourth Proportional to 639,605.10, 882,657.63 and 349,217.58
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Solution
The fourth proportional to 639,605.10, 882,657.63 and 349,217.58 is: 481,921.68
Step by Step Solution
- Step 1: Write the proportion equation
639,605.10 : 882,657.63 = 349,217.58 : x - Step 2: Convert to fraction form
639,605.10/882,657.63 = 349,217.58/x - Step 3: Cross multiply
639,605.10x = 882,657.63 × 349,217.58 - Step 4: Simplify right side
639,605.10x = 308,239,561,517.14 - Step 5: Solve for x
x = 308,239,561,517.14/639,605.10 - Step 6: Final answer
x = 481,921.68
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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.