Finding the Fourth Proportional to 743,693.68, 1,115,540.88 and 490,915.08
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Solution
The fourth proportional to 743,693.68, 1,115,540.88 and 490,915.08 is: 736,372.86
Step by Step Solution
- Step 1: Write the proportion equation
743,693.68 : 1,115,540.88 = 490,915.08 : x - Step 2: Convert to fraction form
743,693.68/1,115,540.88 = 490,915.08/x - Step 3: Cross multiply
743,693.68x = 1,115,540.88 × 490,915.08 - Step 4: Simplify right side
743,693.68x = 547,635,840,348.47 - Step 5: Solve for x
x = 547,635,840,348.47/743,693.68 - Step 6: Final answer
x = 736,372.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.