Finding the Fourth Proportional to 738,413.80, 1,107,620.70 and 239,777.80
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Solution
The fourth proportional to 738,413.80, 1,107,620.70 and 239,777.80 is: 359,666.70
Step by Step Solution
- Step 1: Write the proportion equation
738,413.80 : 1,107,620.70 = 239,777.80 : x - Step 2: Convert to fraction form
738,413.80/1,107,620.70 = 239,777.80/x - Step 3: Cross multiply
738,413.80x = 1,107,620.70 × 239,777.80 - Step 4: Simplify right side
738,413.80x = 265,582,854,680.46 - Step 5: Solve for x
x = 265,582,854,680.46/738,413.80 - Step 6: Final answer
x = 359,666.70
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Similar ratio
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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.