Finding the Fourth Proportional to 511,911.76, 706,317.96 and 310,668.88
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Solution
The fourth proportional to 511,911.76, 706,317.96 and 310,668.88 is: 428,650.07
Step by Step Solution
- Step 1: Write the proportion equation
511,911.76 : 706,317.96 = 310,668.88 : x - Step 2: Convert to fraction form
511,911.76/706,317.96 = 310,668.88/x - Step 3: Cross multiply
511,911.76x = 706,317.96 × 310,668.88 - Step 4: Simplify right side
511,911.76x = 219,431,009,557.09 - Step 5: Solve for x
x = 219,431,009,557.09/511,911.76 - Step 6: Final answer
x = 428,650.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.