Finding the Fourth Proportional to 511,987.46, 768,977.79 and 417,287.62
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Solution
The fourth proportional to 511,987.46, 768,977.79 and 417,287.62 is: 626,743.69
Step by Step Solution
- Step 1: Write the proportion equation
511,987.46 : 768,977.79 = 417,287.62 : x - Step 2: Convert to fraction form
511,987.46/768,977.79 = 417,287.62/x - Step 3: Cross multiply
511,987.46x = 768,977.79 × 417,287.62 - Step 4: Simplify right side
511,987.46x = 320,884,911,821.96 - Step 5: Solve for x
x = 320,884,911,821.96/511,987.46 - Step 6: Final answer
x = 626,743.69
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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.