Finding the Fourth Proportional to 629,941.80, 944,912.70 and 393,745.80
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Solution
The fourth proportional to 629,941.80, 944,912.70 and 393,745.80 is: 590,618.70
Step by Step Solution
- Step 1: Write the proportion equation
629,941.80 : 944,912.70 = 393,745.80 : x - Step 2: Convert to fraction form
629,941.80/944,912.70 = 393,745.80/x - Step 3: Cross multiply
629,941.80x = 944,912.70 × 393,745.80 - Step 4: Simplify right side
629,941.80x = 372,055,406,991.66 - Step 5: Solve for x
x = 372,055,406,991.66/629,941.80 - Step 6: Final answer
x = 590,618.70
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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.