Finding the Fourth Proportional to 412,616.80, 618,838.80 and 202,405.60
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Solution
The fourth proportional to 412,616.80, 618,838.80 and 202,405.60 is: 303,566.02
Step by Step Solution
- Step 1: Write the proportion equation
412,616.80 : 618,838.80 = 202,405.60 : x - Step 2: Convert to fraction form
412,616.80/618,838.80 = 202,405.60/x - Step 3: Cross multiply
412,616.80x = 618,838.80 × 202,405.60 - Step 4: Simplify right side
412,616.80x = 125,256,438,617.28 - Step 5: Solve for x
x = 125,256,438,617.28/412,616.80 - Step 6: Final answer
x = 303,566.02
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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.