Finding the Fourth Proportional to 3,683,780.70, 5,524,686.90 and 1,124,990.70
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Solution
The fourth proportional to 3,683,780.70, 5,524,686.90 and 1,124,990.70 is: 1,687,185.50
Step by Step Solution
- Step 1: Write the proportion equation
3,683,780.70 : 5,524,686.90 = 1,124,990.70 : x - Step 2: Convert to fraction form
3,683,780.70/5,524,686.90 = 1,124,990.70/x - Step 3: Cross multiply
3,683,780.70x = 5,524,686.90 × 1,124,990.70 - Step 4: Simplify right side
3,683,780.70x = 6,215,221,382,911.83 - Step 5: Solve for x
x = 6,215,221,382,911.83/3,683,780.70 - Step 6: Final answer
x = 1,687,185.50
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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.