Finding the Fourth Proportional to 990,060.99, 1,485,716.24 and 421,441.26
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Solution
The fourth proportional to 990,060.99, 1,485,716.24 and 421,441.26 is: 632,427.83
Step by Step Solution
- Step 1: Write the proportion equation
990,060.99 : 1,485,716.24 = 421,441.26 : x - Step 2: Convert to fraction form
990,060.99/1,485,716.24 = 421,441.26/x - Step 3: Cross multiply
990,060.99x = 1,485,716.24 × 421,441.26 - Step 4: Simplify right side
990,060.99x = 626,142,124,188.06 - Step 5: Solve for x
x = 626,142,124,188.06/990,060.99 - Step 6: Final answer
x = 632,427.83
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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.