Finding the Fourth Proportional to 892,212.40, 1,231,274.84 and 484,330.96
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Solution
The fourth proportional to 892,212.40, 1,231,274.84 and 484,330.96 is: 668,388.52
Step by Step Solution
- Step 1: Write the proportion equation
892,212.40 : 1,231,274.84 = 484,330.96 : x - Step 2: Convert to fraction form
892,212.40/1,231,274.84 = 484,330.96/x - Step 3: Cross multiply
892,212.40x = 1,231,274.84 × 484,330.96 - Step 4: Simplify right side
892,212.40x = 596,344,525,281.05 - Step 5: Solve for x
x = 596,344,525,281.05/892,212.40 - Step 6: Final answer
x = 668,388.52
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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.