Finding the Fourth Proportional to 465,584.05, 698,369.16 and 128,617.25
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Solution
The fourth proportional to 465,584.05, 698,369.16 and 128,617.25 is: 192,923.96
Step by Step Solution
- Step 1: Write the proportion equation
465,584.05 : 698,369.16 = 128,617.25 : x - Step 2: Convert to fraction form
465,584.05/698,369.16 = 128,617.25/x - Step 3: Cross multiply
465,584.05x = 698,369.16 × 128,617.25 - Step 4: Simplify right side
465,584.05x = 89,822,320,844.01 - Step 5: Solve for x
x = 89,822,320,844.01/465,584.05 - Step 6: Final answer
x = 192,923.96
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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.