Finding the Fourth Proportional to 804,948.35, 1,207,422.53 and 431,700.35
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Solution
The fourth proportional to 804,948.35, 1,207,422.53 and 431,700.35 is: 647,550.53
Step by Step Solution
- Step 1: Write the proportion equation
804,948.35 : 1,207,422.53 = 431,700.35 : x - Step 2: Convert to fraction form
804,948.35/1,207,422.53 = 431,700.35/x - Step 3: Cross multiply
804,948.35x = 1,207,422.53 × 431,700.35 - Step 4: Simplify right side
804,948.35x = 521,244,726,640.38 - Step 5: Solve for x
x = 521,244,726,640.38/804,948.35 - Step 6: Final answer
x = 647,550.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.