Finding the Fourth Proportional to 503,460.24, 694,776.84 and 288,613.20
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Solution
The fourth proportional to 503,460.24, 694,776.84 and 288,613.20 is: 398,287.20
Step by Step Solution
- Step 1: Write the proportion equation
503,460.24 : 694,776.84 = 288,613.20 : x - Step 2: Convert to fraction form
503,460.24/694,776.84 = 288,613.20/x - Step 3: Cross multiply
503,460.24x = 694,776.84 × 288,613.20 - Step 4: Simplify right side
503,460.24x = 200,521,767,078.29 - Step 5: Solve for x
x = 200,521,767,078.29/503,460.24 - Step 6: Final answer
x = 398,287.20
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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.