Finding the Fourth Proportional to 3,849,611.40, 5,312,589.12 and 2,217,890.70
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Solution
The fourth proportional to 3,849,611.40, 5,312,589.12 and 2,217,890.70 is: 3,060,761.41
Step by Step Solution
- Step 1: Write the proportion equation
3,849,611.40 : 5,312,589.12 = 2,217,890.70 : x - Step 2: Convert to fraction form
3,849,611.40/5,312,589.12 = 2,217,890.70/x - Step 3: Cross multiply
3,849,611.40x = 5,312,589.12 × 2,217,890.70 - Step 4: Simplify right side
3,849,611.40x = 11,782,742,002,169.19 - Step 5: Solve for x
x = 11,782,742,002,169.19/3,849,611.40 - Step 6: Final answer
x = 3,060,761.41
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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.