Finding the Fourth Proportional to 920,184.20, 1,269,829.44 and 512,286.08
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Solution
The fourth proportional to 920,184.20, 1,269,829.44 and 512,286.08 is: 706,941.01
Step by Step Solution
- Step 1: Write the proportion equation
920,184.20 : 1,269,829.44 = 512,286.08 : x - Step 2: Convert to fraction form
920,184.20/1,269,829.44 = 512,286.08/x - Step 3: Cross multiply
920,184.20x = 1,269,829.44 × 512,286.08 - Step 4: Simplify right side
920,184.20x = 650,515,946,086.20 - Step 5: Solve for x
x = 650,515,946,086.20/920,184.20 - Step 6: Final answer
x = 706,941.01
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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.