Finding the Fourth Proportional to 3,412,390.81, 5,108,652.79 and 1,789,310.82
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Solution
The fourth proportional to 3,412,390.81, 5,108,652.79 and 1,789,310.82 is: 2,678,757.57
Step by Step Solution
- Step 1: Write the proportion equation
3,412,390.81 : 5,108,652.79 = 1,789,310.82 : x - Step 2: Convert to fraction form
3,412,390.81/5,108,652.79 = 1,789,310.82/x - Step 3: Cross multiply
3,412,390.81x = 5,108,652.79 × 1,789,310.82 - Step 4: Simplify right side
3,412,390.81x = 9,140,967,712,770.19 - Step 5: Solve for x
x = 9,140,967,712,770.19/3,412,390.81 - Step 6: Final answer
x = 2,678,757.57
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.