Finding the Fourth Proportional to 420,738.53, 580,664.94 and 259,589.44
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Solution
The fourth proportional to 420,738.53, 580,664.94 and 259,589.44 is: 358,261.66
Step by Step Solution
- Step 1: Write the proportion equation
420,738.53 : 580,664.94 = 259,589.44 : x - Step 2: Convert to fraction form
420,738.53/580,664.94 = 259,589.44/x - Step 3: Cross multiply
420,738.53x = 580,664.94 × 259,589.44 - Step 4: Simplify right side
420,738.53x = 150,734,483,698.91 - Step 5: Solve for x
x = 150,734,483,698.91/420,738.53 - Step 6: Final answer
x = 358,261.66
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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.