Finding the Fourth Proportional to 393,518.79, 587,208.94 and 351,107.33
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Solution
The fourth proportional to 393,518.79, 587,208.94 and 351,107.33 is: 523,922.53
Step by Step Solution
- Step 1: Write the proportion equation
393,518.79 : 587,208.94 = 351,107.33 : x - Step 2: Convert to fraction form
393,518.79/587,208.94 = 351,107.33/x - Step 3: Cross multiply
393,518.79x = 587,208.94 × 351,107.33 - Step 4: Simplify right side
393,518.79x = 206,173,359,261.72 - Step 5: Solve for x
x = 206,173,359,261.72/393,518.79 - Step 6: Final answer
x = 523,922.53
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.