Finding the Fourth Proportional to 722,958.80, 1,084,230.84 and 279,623.12
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Solution
The fourth proportional to 722,958.80, 1,084,230.84 and 279,623.12 is: 419,354.48
Step by Step Solution
- Step 1: Write the proportion equation
722,958.80 : 1,084,230.84 = 279,623.12 : x - Step 2: Convert to fraction form
722,958.80/1,084,230.84 = 279,623.12/x - Step 3: Cross multiply
722,958.80x = 1,084,230.84 × 279,623.12 - Step 4: Simplify right side
722,958.80x = 303,176,010,281.02 - Step 5: Solve for x
x = 303,176,010,281.02/722,958.80 - Step 6: Final answer
x = 419,354.48
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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.