Finding the Fourth Proportional to 1,542,185.60, 2,313,163.20 and 643,395.20
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Solution
The fourth proportional to 1,542,185.60, 2,313,163.20 and 643,395.20 is: 965,044.74
Step by Step Solution
- Step 1: Write the proportion equation
1,542,185.60 : 2,313,163.20 = 643,395.20 : x - Step 2: Convert to fraction form
1,542,185.60/2,313,163.20 = 643,395.20/x - Step 3: Cross multiply
1,542,185.60x = 2,313,163.20 × 643,395.20 - Step 4: Simplify right side
1,542,185.60x = 1,488,278,099,696.64 - Step 5: Solve for x
x = 1,488,278,099,696.64/1,542,185.60 - Step 6: Final answer
x = 965,044.74
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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.