Finding the Fourth Proportional to 3,115,568.37, 4,299,490.29 and 1,720,132.68
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Solution
The fourth proportional to 3,115,568.37, 4,299,490.29 and 1,720,132.68 is: 2,373,786.38
Step by Step Solution
- Step 1: Write the proportion equation
3,115,568.37 : 4,299,490.29 = 1,720,132.68 : x - Step 2: Convert to fraction form
3,115,568.37/4,299,490.29 = 1,720,132.68/x - Step 3: Cross multiply
3,115,568.37x = 4,299,490.29 × 1,720,132.68 - Step 4: Simplify right side
3,115,568.37x = 7,395,693,755,171.68 - Step 5: Solve for x
x = 7,395,693,755,171.68/3,115,568.37 - Step 6: Final answer
x = 2,373,786.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.