Finding the Fourth Proportional to 829,560.80, 1,243,611.60 and 491,768.80
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Solution
The fourth proportional to 829,560.80, 1,243,611.60 and 491,768.80 is: 737,220.69
Step by Step Solution
- Step 1: Write the proportion equation
829,560.80 : 1,243,611.60 = 491,768.80 : x - Step 2: Convert to fraction form
829,560.80/1,243,611.60 = 491,768.80/x - Step 3: Cross multiply
829,560.80x = 1,243,611.60 × 491,768.80 - Step 4: Simplify right side
829,560.80x = 611,569,384,198.08 - Step 5: Solve for x
x = 611,569,384,198.08/829,560.80 - Step 6: Final answer
x = 737,220.69
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1.5x scale
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.