Finding the Fourth Proportional to 3,894,131.28, 5,831,658.36 and 3,216,064.08
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Solution
The fourth proportional to 3,894,131.28, 5,831,658.36 and 3,216,064.08 is: 4,816,218.47
Step by Step Solution
- Step 1: Write the proportion equation
3,894,131.28 : 5,831,658.36 = 3,216,064.08 : x - Step 2: Convert to fraction form
3,894,131.28/5,831,658.36 = 3,216,064.08/x - Step 3: Cross multiply
3,894,131.28x = 5,831,658.36 × 3,216,064.08 - Step 4: Simplify right side
3,894,131.28x = 18,754,986,978,427.71 - Step 5: Solve for x
x = 18,754,986,978,427.71/3,894,131.28 - Step 6: Final answer
x = 4,816,218.47
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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.