Finding the Fourth Proportional to 511,644.99, 706,346.91 and 307,741.44
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Solution
The fourth proportional to 511,644.99, 706,346.91 and 307,741.44 is: 424,849.69
Step by Step Solution
- Step 1: Write the proportion equation
511,644.99 : 706,346.91 = 307,741.44 : x - Step 2: Convert to fraction form
511,644.99/706,346.91 = 307,741.44/x - Step 3: Cross multiply
511,644.99x = 706,346.91 × 307,741.44 - Step 4: Simplify right side
511,644.99x = 217,372,215,222.95 - Step 5: Solve for x
x = 217,372,215,222.95/511,644.99 - Step 6: Final answer
x = 424,849.69
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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.