Finding the Fourth Proportional to 721,209.32, 995,202.07 and 398,912.48
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Solution
The fourth proportional to 721,209.32, 995,202.07 and 398,912.48 is: 550,462.27
Step by Step Solution
- Step 1: Write the proportion equation
721,209.32 : 995,202.07 = 398,912.48 : x - Step 2: Convert to fraction form
721,209.32/995,202.07 = 398,912.48/x - Step 3: Cross multiply
721,209.32x = 995,202.07 × 398,912.48 - Step 4: Simplify right side
721,209.32x = 396,998,518,874.26 - Step 5: Solve for x
x = 396,998,518,874.26/721,209.32 - Step 6: Final answer
x = 550,462.27
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1.5x scale
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.