Finding the Fourth Proportional to 2,084,745.20, 3,127,117.80 and 1,421,193.20
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Solution
The fourth proportional to 2,084,745.20, 3,127,117.80 and 1,421,193.20 is: 2,131,789.80
Step by Step Solution
- Step 1: Write the proportion equation
2,084,745.20 : 3,127,117.80 = 1,421,193.20 : x - Step 2: Convert to fraction form
2,084,745.20/3,127,117.80 = 1,421,193.20/x - Step 3: Cross multiply
2,084,745.20x = 3,127,117.80 × 1,421,193.20 - Step 4: Simplify right side
2,084,745.20x = 4,444,238,552,958.96 - Step 5: Solve for x
x = 4,444,238,552,958.96/2,084,745.20 - Step 6: Final answer
x = 2,131,789.80
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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.