Finding the Fourth Proportional to 324,644.77, 486,994.74 and 84,790.45
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Solution
The fourth proportional to 324,644.77, 486,994.74 and 84,790.45 is: 127,192.88
Step by Step Solution
- Step 1: Write the proportion equation
324,644.77 : 486,994.74 = 84,790.45 : x - Step 2: Convert to fraction form
324,644.77/486,994.74 = 84,790.45/x - Step 3: Cross multiply
324,644.77x = 486,994.74 × 84,790.45 - Step 4: Simplify right side
324,644.77x = 41,292,503,152.23 - Step 5: Solve for x
x = 41,292,503,152.23/324,644.77 - Step 6: Final answer
x = 127,192.88
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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.