Finding the Fourth Proportional to 1,425,611.38, 2,138,416.26 and 1,331,132.98
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Solution
The fourth proportional to 1,425,611.38, 2,138,416.26 and 1,331,132.98 is: 1,996,698.71
Step by Step Solution
- Step 1: Write the proportion equation
1,425,611.38 : 2,138,416.26 = 1,331,132.98 : x - Step 2: Convert to fraction form
1,425,611.38/2,138,416.26 = 1,331,132.98/x - Step 3: Cross multiply
1,425,611.38x = 2,138,416.26 × 1,331,132.98 - Step 4: Simplify right side
1,425,611.38x = 2,846,516,408,654.25 - Step 5: Solve for x
x = 2,846,516,408,654.25/1,425,611.38 - Step 6: Final answer
x = 1,996,698.71
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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.