Finding the Fourth Proportional to 741,764.64, 1,023,691.68 and 419,481.12
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Solution
The fourth proportional to 741,764.64, 1,023,691.68 and 419,481.12 is: 578,915.88
Step by Step Solution
- Step 1: Write the proportion equation
741,764.64 : 1,023,691.68 = 419,481.12 : x - Step 2: Convert to fraction form
741,764.64/1,023,691.68 = 419,481.12/x - Step 3: Cross multiply
741,764.64x = 1,023,691.68 × 419,481.12 - Step 4: Simplify right side
741,764.64x = 429,419,332,461.08 - Step 5: Solve for x
x = 429,419,332,461.08/741,764.64 - Step 6: Final answer
x = 578,915.88
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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.