Finding the Fourth Proportional to 405,954.99, 560,753.36 and 311,627.31
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Solution
The fourth proportional to 405,954.99, 560,753.36 and 311,627.31 is: 430,456.74
Step by Step Solution
- Step 1: Write the proportion equation
405,954.99 : 560,753.36 = 311,627.31 : x - Step 2: Convert to fraction form
405,954.99/560,753.36 = 311,627.31/x - Step 3: Cross multiply
405,954.99x = 560,753.36 × 311,627.31 - Step 4: Simplify right side
405,954.99x = 174,746,059,592.13 - Step 5: Solve for x
x = 174,746,059,592.13/405,954.99 - Step 6: Final answer
x = 430,456.74
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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.