Finding the Fourth Proportional to 667,116.74, 920,619.88 and 361,193.08
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Solution
The fourth proportional to 667,116.74, 920,619.88 and 361,193.08 is: 498,445.79
Step by Step Solution
- Step 1: Write the proportion equation
667,116.74 : 920,619.88 = 361,193.08 : x - Step 2: Convert to fraction form
667,116.74/920,619.88 = 361,193.08/x - Step 3: Cross multiply
667,116.74x = 920,619.88 × 361,193.08 - Step 4: Simplify right side
667,116.74x = 332,521,529,966.43 - Step 5: Solve for x
x = 332,521,529,966.43/667,116.74 - Step 6: Final answer
x = 498,445.79
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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.