Finding the Fourth Proportional to 738,122.80, 1,107,126.60 and 288,756.40
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Solution
The fourth proportional to 738,122.80, 1,107,126.60 and 288,756.40 is: 433,112.07
Step by Step Solution
- Step 1: Write the proportion equation
738,122.80 : 1,107,126.60 = 288,756.40 : x - Step 2: Convert to fraction form
738,122.80/1,107,126.60 = 288,756.40/x - Step 3: Cross multiply
738,122.80x = 1,107,126.60 × 288,756.40 - Step 4: Simplify right side
738,122.80x = 319,689,891,360.24 - Step 5: Solve for x
x = 319,689,891,360.24/738,122.80 - Step 6: Final answer
x = 433,112.07
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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.