Finding the Fourth Proportional to 518,074.50, 777,076.08 and 318,425.70
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Solution
The fourth proportional to 518,074.50, 777,076.08 and 318,425.70 is: 477,616.63
Step by Step Solution
- Step 1: Write the proportion equation
518,074.50 : 777,076.08 = 318,425.70 : x - Step 2: Convert to fraction form
518,074.50/777,076.08 = 318,425.70/x - Step 3: Cross multiply
518,074.50x = 777,076.08 × 318,425.70 - Step 4: Simplify right side
518,074.50x = 247,440,994,727.26 - Step 5: Solve for x
x = 247,440,994,727.26/518,074.50 - Step 6: Final answer
x = 477,616.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.