Finding the Fourth Proportional to 1,649,584.13, 2,275,617.20 and 1,431,486.77
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Solution
The fourth proportional to 1,649,584.13, 2,275,617.20 and 1,431,486.77 is: 1,974,749.79
Step by Step Solution
- Step 1: Write the proportion equation
1,649,584.13 : 2,275,617.20 = 1,431,486.77 : x - Step 2: Convert to fraction form
1,649,584.13/2,275,617.20 = 1,431,486.77/x - Step 3: Cross multiply
1,649,584.13x = 2,275,617.20 × 1,431,486.77 - Step 4: Simplify right side
1,649,584.13x = 3,257,515,896,848.92 - Step 5: Solve for x
x = 3,257,515,896,848.92/1,649,584.13 - Step 6: Final answer
x = 1,974,749.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.