Finding the Fourth Proportional to 3,156,183.97, 4,355,532 and 1,705,879.47
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Solution
The fourth proportional to 3,156,183.97, 4,355,532 and 1,705,879.47 is: 2,354,112.66
Step by Step Solution
- Step 1: Write the proportion equation
3,156,183.97 : 4,355,532 = 1,705,879.47 : x - Step 2: Convert to fraction form
3,156,183.97/4,355,532 = 1,705,879.47/x - Step 3: Cross multiply
3,156,183.97x = 4,355,532 × 1,705,879.47 - Step 4: Simplify right side
3,156,183.97x = 7,430,012,636,061.28 - Step 5: Solve for x
x = 7,430,012,636,061.28/3,156,183.97 - Step 6: Final answer
x = 2,354,112.66
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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.