Finding the Fourth Proportional to 1,380,535.75, 2,070,944.99 and 528,324.20
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Solution
The fourth proportional to 1,380,535.75, 2,070,944.99 and 528,324.20 is: 792,540.39
Step by Step Solution
- Step 1: Write the proportion equation
1,380,535.75 : 2,070,944.99 = 528,324.20 : x - Step 2: Convert to fraction form
1,380,535.75/2,070,944.99 = 528,324.20/x - Step 3: Cross multiply
1,380,535.75x = 2,070,944.99 × 528,324.20 - Step 4: Simplify right side
1,380,535.75x = 1,094,130,342,089.41 - Step 5: Solve for x
x = 1,094,130,342,089.41/1,380,535.75 - Step 6: Final answer
x = 792,540.39
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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.