Finding the Fourth Proportional to 739,519.44, 1,020,533.49 and 399,986.88
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Solution
The fourth proportional to 739,519.44, 1,020,533.49 and 399,986.88 is: 551,980.09
Step by Step Solution
- Step 1: Write the proportion equation
739,519.44 : 1,020,533.49 = 399,986.88 : x - Step 2: Convert to fraction form
739,519.44/1,020,533.49 = 399,986.88/x - Step 3: Cross multiply
739,519.44x = 1,020,533.49 × 399,986.88 - Step 4: Simplify right side
739,519.44x = 408,200,006,600.61 - Step 5: Solve for x
x = 408,200,006,600.61/739,519.44 - Step 6: Final answer
x = 551,980.09
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1.5x scale
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.