Finding the Fourth Proportional to 2,172,897.12, 2,998,575.44 and 1,206,035.84
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Solution
The fourth proportional to 2,172,897.12, 2,998,575.44 and 1,206,035.84 is: 1,664,316.92
Step by Step Solution
- Step 1: Write the proportion equation
2,172,897.12 : 2,998,575.44 = 1,206,035.84 : x - Step 2: Convert to fraction form
2,172,897.12/2,998,575.44 = 1,206,035.84/x - Step 3: Cross multiply
2,172,897.12x = 2,998,575.44 × 1,206,035.84 - Step 4: Simplify right side
2,172,897.12x = 3,616,389,449,583.77 - Step 5: Solve for x
x = 3,616,389,449,583.77/2,172,897.12 - Step 6: Final answer
x = 1,664,316.92
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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.