Finding the Fourth Proportional to 1,211,611.24, 1,672,308.43 and 753,072.11
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Solution
The fourth proportional to 1,211,611.24, 1,672,308.43 and 753,072.11 is: 1,039,416.61
Step by Step Solution
- Step 1: Write the proportion equation
1,211,611.24 : 1,672,308.43 = 753,072.11 : x - Step 2: Convert to fraction form
1,211,611.24/1,672,308.43 = 753,072.11/x - Step 3: Cross multiply
1,211,611.24x = 1,672,308.43 × 753,072.11 - Step 4: Simplify right side
1,211,611.24x = 1,259,368,842,917.22 - Step 5: Solve for x
x = 1,259,368,842,917.22/1,211,611.24 - Step 6: Final answer
x = 1,039,416.61
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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.