Finding the Fourth Proportional to 738,124.80, 1,107,187.20 and 675,139.20
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Solution
The fourth proportional to 738,124.80, 1,107,187.20 and 675,139.20 is: 1,012,708.80
Step by Step Solution
- Step 1: Write the proportion equation
738,124.80 : 1,107,187.20 = 675,139.20 : x - Step 2: Convert to fraction form
738,124.80/1,107,187.20 = 675,139.20/x - Step 3: Cross multiply
738,124.80x = 1,107,187.20 × 675,139.20 - Step 4: Simplify right side
738,124.80x = 747,505,480,458.24 - Step 5: Solve for x
x = 747,505,480,458.24/738,124.80 - Step 6: Final answer
x = 1,012,708.80
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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.