Finding the Fourth Proportional to 721,423.08, 995,527.41 and 394,729.02
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Solution
The fourth proportional to 721,423.08, 995,527.41 and 394,729.02 is: 544,706.11
Step by Step Solution
- Step 1: Write the proportion equation
721,423.08 : 995,527.41 = 394,729.02 : x - Step 2: Convert to fraction form
721,423.08/995,527.41 = 394,729.02/x - Step 3: Cross multiply
721,423.08x = 995,527.41 × 394,729.02 - Step 4: Simplify right side
721,423.08x = 392,963,558,932.44 - Step 5: Solve for x
x = 392,963,558,932.44/721,423.08 - Step 6: Final answer
x = 544,706.11
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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.