Finding the Fourth Proportional to 738,129.10, 1,107,193.65 and 731,908.30
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Solution
The fourth proportional to 738,129.10, 1,107,193.65 and 731,908.30 is: 1,097,862.45
Step by Step Solution
- Step 1: Write the proportion equation
738,129.10 : 1,107,193.65 = 731,908.30 : x - Step 2: Convert to fraction form
738,129.10/1,107,193.65 = 731,908.30/x - Step 3: Cross multiply
738,129.10x = 1,107,193.65 × 731,908.30 - Step 4: Simplify right side
738,129.10x = 810,364,222,142.30 - Step 5: Solve for x
x = 810,364,222,142.30/738,129.10 - Step 6: Final answer
x = 1,097,862.45
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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.