Finding the Fourth Proportional to 3,878,661.70, 5,809,135.20 and 2,284,338.70
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Solution
The fourth proportional to 3,878,661.70, 5,809,135.20 and 2,284,338.70 is: 3,421,291.51
Step by Step Solution
- Step 1: Write the proportion equation
3,878,661.70 : 5,809,135.20 = 2,284,338.70 : x - Step 2: Convert to fraction form
3,878,661.70/5,809,135.20 = 2,284,338.70/x - Step 3: Cross multiply
3,878,661.70x = 5,809,135.20 × 2,284,338.70 - Step 4: Simplify right side
3,878,661.70x = 13,270,032,350,892.24 - Step 5: Solve for x
x = 13,270,032,350,892.24/3,878,661.70 - Step 6: Final answer
x = 3,421,291.51
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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.