Finding the Fourth Proportional to 738,447.26, 1,019,058.12 and 398,915.50
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Solution
The fourth proportional to 738,447.26, 1,019,058.12 and 398,915.50 is: 550,503.88
Step by Step Solution
- Step 1: Write the proportion equation
738,447.26 : 1,019,058.12 = 398,915.50 : x - Step 2: Convert to fraction form
738,447.26/1,019,058.12 = 398,915.50/x - Step 3: Cross multiply
738,447.26x = 1,019,058.12 × 398,915.50 - Step 4: Simplify right side
738,447.26x = 406,518,079,468.86 - Step 5: Solve for x
x = 406,518,079,468.86/738,447.26 - Step 6: Final answer
x = 550,503.88
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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.