Finding the Fourth Proportional to 490,216.24, 676,514.84 and 272,434.09
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Solution
The fourth proportional to 490,216.24, 676,514.84 and 272,434.09 is: 375,968.17
Step by Step Solution
- Step 1: Write the proportion equation
490,216.24 : 676,514.84 = 272,434.09 : x - Step 2: Convert to fraction form
490,216.24/676,514.84 = 272,434.09/x - Step 3: Cross multiply
490,216.24x = 676,514.84 × 272,434.09 - Step 4: Simplify right side
490,216.24x = 184,305,704,806.90 - Step 5: Solve for x
x = 184,305,704,806.90/490,216.24 - Step 6: Final answer
x = 375,968.17
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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.