Finding the Fourth Proportional to 721,540.07, 996,031.98 and 449,743.35
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Solution
The fourth proportional to 721,540.07, 996,031.98 and 449,743.35 is: 620,836.99
Step by Step Solution
- Step 1: Write the proportion equation
721,540.07 : 996,031.98 = 449,743.35 : x - Step 2: Convert to fraction form
721,540.07/996,031.98 = 449,743.35/x - Step 3: Cross multiply
721,540.07x = 996,031.98 × 449,743.35 - Step 4: Simplify right side
721,540.07x = 447,958,759,392.33 - Step 5: Solve for x
x = 447,958,759,392.33/721,540.07 - Step 6: Final answer
x = 620,836.99
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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.