Finding the Fourth Proportional to 2,146,364.98, 2,961,337.68 and 1,286,611.54
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Solution
The fourth proportional to 2,146,364.98, 2,961,337.68 and 1,286,611.54 is: 1,775,136.69
Step by Step Solution
- Step 1: Write the proportion equation
2,146,364.98 : 2,961,337.68 = 1,286,611.54 : x - Step 2: Convert to fraction form
2,146,364.98/2,961,337.68 = 1,286,611.54/x - Step 3: Cross multiply
2,146,364.98x = 2,961,337.68 × 1,286,611.54 - Step 4: Simplify right side
2,146,364.98x = 3,810,091,232,924.83 - Step 5: Solve for x
x = 3,810,091,232,924.83/2,146,364.98 - Step 6: Final answer
x = 1,775,136.69
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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.