Finding the Fourth Proportional to 412,603.70, 618,905.55 and 202,651.70
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Solution
The fourth proportional to 412,603.70, 618,905.55 and 202,651.70 is: 303,977.55
Step by Step Solution
- Step 1: Write the proportion equation
412,603.70 : 618,905.55 = 202,651.70 : x - Step 2: Convert to fraction form
412,603.70/618,905.55 = 202,651.70/x - Step 3: Cross multiply
412,603.70x = 618,905.55 × 202,651.70 - Step 4: Simplify right side
412,603.70x = 125,422,261,846.94 - Step 5: Solve for x
x = 125,422,261,846.94/412,603.70 - Step 6: Final answer
x = 303,977.55
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1.5x scale
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.