Finding the Fourth Proportional to 1,372,808.09, 2,057,418.75 and 765,572.17
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Solution
The fourth proportional to 1,372,808.09, 2,057,418.75 and 765,572.17 is: 1,147,358.13
Step by Step Solution
- Step 1: Write the proportion equation
1,372,808.09 : 2,057,418.75 = 765,572.17 : x - Step 2: Convert to fraction form
1,372,808.09/2,057,418.75 = 765,572.17/x - Step 3: Cross multiply
1,372,808.09x = 2,057,418.75 × 765,572.17 - Step 4: Simplify right side
1,372,808.09x = 1,575,102,522,921.23 - Step 5: Solve for x
x = 1,575,102,522,921.23/1,372,808.09 - Step 6: Final answer
x = 1,147,358.13
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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.