Finding the Fourth Proportional to 465,894.70, 698,857.70 and 128,907.16
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Solution
The fourth proportional to 465,894.70, 698,857.70 and 128,907.16 is: 193,365.07
Step by Step Solution
- Step 1: Write the proportion equation
465,894.70 : 698,857.70 = 128,907.16 : x - Step 2: Convert to fraction form
465,894.70/698,857.70 = 128,907.16/x - Step 3: Cross multiply
465,894.70x = 698,857.70 × 128,907.16 - Step 4: Simplify right side
465,894.70x = 90,087,761,351.13 - Step 5: Solve for x
x = 90,087,761,351.13/465,894.70 - Step 6: Final answer
x = 193,365.07
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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.