Finding the Fourth Proportional to 511,775.24, 768,328.09 and 393,529.62
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Solution
The fourth proportional to 511,775.24, 768,328.09 and 393,529.62 is: 590,805.95
Step by Step Solution
- Step 1: Write the proportion equation
511,775.24 : 768,328.09 = 393,529.62 : x - Step 2: Convert to fraction form
511,775.24/768,328.09 = 393,529.62/x - Step 3: Cross multiply
511,775.24x = 768,328.09 × 393,529.62 - Step 4: Simplify right side
511,775.24x = 302,359,860,309.20 - Step 5: Solve for x
x = 302,359,860,309.20/511,775.24 - Step 6: Final answer
x = 590,805.95
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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.