Finding the Fourth Proportional to 639,338.97, 882,283.43 and 352,859.05
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Solution
The fourth proportional to 639,338.97, 882,283.43 and 352,859.05 is: 486,943.09
Step by Step Solution
- Step 1: Write the proportion equation
639,338.97 : 882,283.43 = 352,859.05 : x - Step 2: Convert to fraction form
639,338.97/882,283.43 = 352,859.05/x - Step 3: Cross multiply
639,338.97x = 882,283.43 × 352,859.05 - Step 4: Simplify right side
639,338.97x = 311,321,694,925.54 - Step 5: Solve for x
x = 311,321,694,925.54/639,338.97 - Step 6: Final answer
x = 486,943.09
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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.