Finding the Fourth Proportional to 4,190,755.20, 6,286,132.80 and 1,666,410.45
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Solution
The fourth proportional to 4,190,755.20, 6,286,132.80 and 1,666,410.45 is: 2,499,615.68
Step by Step Solution
- Step 1: Write the proportion equation
4,190,755.20 : 6,286,132.80 = 1,666,410.45 : x - Step 2: Convert to fraction form
4,190,755.20/6,286,132.80 = 1,666,410.45/x - Step 3: Cross multiply
4,190,755.20x = 6,286,132.80 × 1,666,410.45 - Step 4: Simplify right side
4,190,755.20x = 10,475,277,388,007.76 - Step 5: Solve for x
x = 10,475,277,388,007.76/4,190,755.20 - Step 6: Final answer
x = 2,499,615.68
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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.