Finding the Fourth Proportional to 667,390.98, 920,994.84 and 361,460.46
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Solution
The fourth proportional to 667,390.98, 920,994.84 and 361,460.46 is: 498,812.88
Step by Step Solution
- Step 1: Write the proportion equation
667,390.98 : 920,994.84 = 361,460.46 : x - Step 2: Convert to fraction form
667,390.98/920,994.84 = 361,460.46/x - Step 3: Cross multiply
667,390.98x = 920,994.84 × 361,460.46 - Step 4: Simplify right side
667,390.98x = 332,903,218,524.03 - Step 5: Solve for x
x = 332,903,218,524.03/667,390.98 - Step 6: Final answer
x = 498,812.88
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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.