Finding the Fourth Proportional to 4,086,897.40, 6,131,089.68 and 1,689,439.96
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Solution
The fourth proportional to 4,086,897.40, 6,131,089.68 and 1,689,439.96 is: 2,534,467.32
Step by Step Solution
- Step 1: Write the proportion equation
4,086,897.40 : 6,131,089.68 = 1,689,439.96 : x - Step 2: Convert to fraction form
4,086,897.40/6,131,089.68 = 1,689,439.96/x - Step 3: Cross multiply
4,086,897.40x = 6,131,089.68 × 1,689,439.96 - Step 4: Simplify right side
4,086,897.40x = 10,358,107,903,735.61 - Step 5: Solve for x
x = 10,358,107,903,735.61/4,086,897.40 - Step 6: Final answer
x = 2,534,467.32
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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.