Finding the Fourth Proportional to 4,278,101.12, 6,416,610.38 and 1,399,221.80
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Solution
The fourth proportional to 4,278,101.12, 6,416,610.38 and 1,399,221.80 is: 2,098,655.66
Step by Step Solution
- Step 1: Write the proportion equation
4,278,101.12 : 6,416,610.38 = 1,399,221.80 : x - Step 2: Convert to fraction form
4,278,101.12/6,416,610.38 = 1,399,221.80/x - Step 3: Cross multiply
4,278,101.12x = 6,416,610.38 × 1,399,221.80 - Step 4: Simplify right side
4,278,101.12x = 8,978,261,125,802.28 - Step 5: Solve for x
x = 8,978,261,125,802.28/4,278,101.12 - Step 6: Final answer
x = 2,098,655.66
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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.