Finding the Fourth Proportional to 639,372.94, 882,330.36 and 352,892.94
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Solution
The fourth proportional to 639,372.94, 882,330.36 and 352,892.94 is: 486,989.89
Step by Step Solution
- Step 1: Write the proportion equation
639,372.94 : 882,330.36 = 352,892.94 : x - Step 2: Convert to fraction form
639,372.94/882,330.36 = 352,892.94/x - Step 3: Cross multiply
639,372.94x = 882,330.36 × 352,892.94 - Step 4: Simplify right side
639,372.94x = 311,368,154,791.66 - Step 5: Solve for x
x = 311,368,154,791.66/639,372.94 - Step 6: Final answer
x = 486,989.89
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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.