Finding the Fourth Proportional to 511,776.25, 768,329.58 and 393,530.62
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Solution
The fourth proportional to 511,776.25, 768,329.58 and 393,530.62 is: 590,807.44
Step by Step Solution
- Step 1: Write the proportion equation
511,776.25 : 768,329.58 = 393,530.62 : x - Step 2: Convert to fraction form
511,776.25/768,329.58 = 393,530.62/x - Step 3: Cross multiply
511,776.25x = 768,329.58 × 393,530.62 - Step 4: Simplify right side
511,776.25x = 302,361,215,981.74 - Step 5: Solve for x
x = 302,361,215,981.74/511,776.25 - Step 6: Final answer
x = 590,807.44
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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.