Finding the Fourth Proportional to 829,986.60, 1,245,563.10 and 531,193.80
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Solution
The fourth proportional to 829,986.60, 1,245,563.10 and 531,193.80 is: 797,163.95
Step by Step Solution
- Step 1: Write the proportion equation
829,986.60 : 1,245,563.10 = 531,193.80 : x - Step 2: Convert to fraction form
829,986.60/1,245,563.10 = 531,193.80/x - Step 3: Cross multiply
829,986.60x = 1,245,563.10 × 531,193.80 - Step 4: Simplify right side
829,986.60x = 661,635,396,228.78 - Step 5: Solve for x
x = 661,635,396,228.78/829,986.60 - Step 6: Final answer
x = 797,163.95
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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.