Finding the Fourth Proportional to 1,215,396.12, 1,677,160.44 and 671,525.94
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Solution
The fourth proportional to 1,215,396.12, 1,677,160.44 and 671,525.94 is: 926,658.17
Step by Step Solution
- Step 1: Write the proportion equation
1,215,396.12 : 1,677,160.44 = 671,525.94 : x - Step 2: Convert to fraction form
1,215,396.12/1,677,160.44 = 671,525.94/x - Step 3: Cross multiply
1,215,396.12x = 1,677,160.44 × 671,525.94 - Step 4: Simplify right side
1,215,396.12x = 1,126,256,741,001.81 - Step 5: Solve for x
x = 1,126,256,741,001.81/1,215,396.12 - Step 6: Final answer
x = 926,658.17
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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.