Finding the Fourth Proportional to 409,310.97, 560,758.07 and 393,970.34
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Solution
The fourth proportional to 409,310.97, 560,758.07 and 393,970.34 is: 539,741.33
Step by Step Solution
- Step 1: Write the proportion equation
409,310.97 : 560,758.07 = 393,970.34 : x - Step 2: Convert to fraction form
409,310.97/560,758.07 = 393,970.34/x - Step 3: Cross multiply
409,310.97x = 560,758.07 × 393,970.34 - Step 4: Simplify right side
409,310.97x = 220,922,047,495.64 - Step 5: Solve for x
x = 220,922,047,495.64/409,310.97 - Step 6: Final answer
x = 539,741.33
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.