Finding the Fourth Proportional to 3,218,843.80, 4,828,265.70 and 2,021,607.10
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Solution
The fourth proportional to 3,218,843.80, 4,828,265.70 and 2,021,607.10 is: 3,032,410.65
Step by Step Solution
- Step 1: Write the proportion equation
3,218,843.80 : 4,828,265.70 = 2,021,607.10 : x - Step 2: Convert to fraction form
3,218,843.80/4,828,265.70 = 2,021,607.10/x - Step 3: Cross multiply
3,218,843.80x = 4,828,265.70 × 2,021,607.10 - Step 4: Simplify right side
3,218,843.80x = 9,760,856,219,806.47 - Step 5: Solve for x
x = 9,760,856,219,806.47/3,218,843.80 - Step 6: Final answer
x = 3,032,410.65
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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.