Finding the Fourth Proportional to 529,418.80, 794,128.20 and 213,713.20
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Solution
The fourth proportional to 529,418.80, 794,128.20 and 213,713.20 is: 320,569.80
Step by Step Solution
- Step 1: Write the proportion equation
529,418.80 : 794,128.20 = 213,713.20 : x - Step 2: Convert to fraction form
529,418.80/794,128.20 = 213,713.20/x - Step 3: Cross multiply
529,418.80x = 794,128.20 × 213,713.20 - Step 4: Simplify right side
529,418.80x = 169,715,678,832.24 - Step 5: Solve for x
x = 169,715,678,832.24/529,418.80 - Step 6: Final answer
x = 320,569.80
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Similar ratio
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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.