Finding the Fourth Proportional to 1,215,399.13, 1,677,205.74 and 671,523.21
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Solution
The fourth proportional to 1,215,399.13, 1,677,205.74 and 671,523.21 is: 926,677.14
Step by Step Solution
- Step 1: Write the proportion equation
1,215,399.13 : 1,677,205.74 = 671,523.21 : x - Step 2: Convert to fraction form
1,215,399.13/1,677,205.74 = 671,523.21/x - Step 3: Cross multiply
1,215,399.13x = 1,677,205.74 × 671,523.21 - Step 4: Simplify right side
1,215,399.13x = 1,126,282,584,873.44 - Step 5: Solve for x
x = 1,126,282,584,873.44/1,215,399.13 - Step 6: Final answer
x = 926,677.14
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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.