Finding the Fourth Proportional to 1,503,815.13, 2,255,685.21 and 438,866.42
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Solution
The fourth proportional to 1,503,815.13, 2,255,685.21 and 438,866.42 is: 658,288.68
Step by Step Solution
- Step 1: Write the proportion equation
1,503,815.13 : 2,255,685.21 = 438,866.42 : x - Step 2: Convert to fraction form
1,503,815.13/2,255,685.21 = 438,866.42/x - Step 3: Cross multiply
1,503,815.13x = 2,255,685.21 × 438,866.42 - Step 4: Simplify right side
1,503,815.13x = 989,944,481,481.22 - Step 5: Solve for x
x = 989,944,481,481.22/1,503,815.13 - Step 6: Final answer
x = 658,288.68
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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.