Finding the Fourth Proportional to 2,146,562.64, 2,961,609.84 and 1,286,809.20
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Solution
The fourth proportional to 2,146,562.64, 2,961,609.84 and 1,286,809.20 is: 1,775,409.07
Step by Step Solution
- Step 1: Write the proportion equation
2,146,562.64 : 2,961,609.84 = 1,286,809.20 : x - Step 2: Convert to fraction form
2,146,562.64/2,961,609.84 = 1,286,809.20/x - Step 3: Cross multiply
2,146,562.64x = 2,961,609.84 × 1,286,809.20 - Step 4: Simplify right side
2,146,562.64x = 3,811,026,788,922.53 - Step 5: Solve for x
x = 3,811,026,788,922.53/2,146,562.64 - Step 6: Final answer
x = 1,775,409.07
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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.