Finding the Fourth Proportional to 396,828.51, 547,627.37 and 215,543.99
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Solution
The fourth proportional to 396,828.51, 547,627.37 and 215,543.99 is: 297,452.88
Step by Step Solution
- Step 1: Write the proportion equation
396,828.51 : 547,627.37 = 215,543.99 : x - Step 2: Convert to fraction form
396,828.51/547,627.37 = 215,543.99/x - Step 3: Cross multiply
396,828.51x = 547,627.37 × 215,543.99 - Step 4: Simplify right side
396,828.51x = 118,037,784,547.15 - Step 5: Solve for x
x = 118,037,784,547.15/396,828.51 - Step 6: Final answer
x = 297,452.88
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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.