Finding the Fourth Proportional to 670,679.73, 925,645.86 and 395,082.09
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Solution
The fourth proportional to 670,679.73, 925,645.86 and 395,082.09 is: 545,276.81
Step by Step Solution
- Step 1: Write the proportion equation
670,679.73 : 925,645.86 = 395,082.09 : x - Step 2: Convert to fraction form
670,679.73/925,645.86 = 395,082.09/x - Step 3: Cross multiply
670,679.73x = 925,645.86 × 395,082.09 - Step 4: Simplify right side
670,679.73x = 365,706,100,968.65 - Step 5: Solve for x
x = 365,706,100,968.65/670,679.73 - Step 6: Final answer
x = 545,276.81
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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.