Finding the Fourth Proportional to 738,134.40, 1,107,201.60 and 472,195.20
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Solution
The fourth proportional to 738,134.40, 1,107,201.60 and 472,195.20 is: 708,292.80
Step by Step Solution
- Step 1: Write the proportion equation
738,134.40 : 1,107,201.60 = 472,195.20 : x - Step 2: Convert to fraction form
738,134.40/1,107,201.60 = 472,195.20/x - Step 3: Cross multiply
738,134.40x = 1,107,201.60 × 472,195.20 - Step 4: Simplify right side
738,134.40x = 522,815,280,952.32 - Step 5: Solve for x
x = 522,815,280,952.32/738,134.40 - Step 6: Final answer
x = 708,292.80
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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.