Finding the Fourth Proportional to 2,378,379.53, 3,282,172.36 and 1,290,650.82
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Solution
The fourth proportional to 2,378,379.53, 3,282,172.36 and 1,290,650.82 is: 1,781,102.80
Step by Step Solution
- Step 1: Write the proportion equation
2,378,379.53 : 3,282,172.36 = 1,290,650.82 : x - Step 2: Convert to fraction form
2,378,379.53/3,282,172.36 = 1,290,650.82/x - Step 3: Cross multiply
2,378,379.53x = 3,282,172.36 × 1,290,650.82 - Step 4: Simplify right side
2,378,379.53x = 4,236,138,454,372.74 - Step 5: Solve for x
x = 4,236,138,454,372.74/2,378,379.53 - Step 6: Final answer
x = 1,781,102.80
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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.