Finding the Fourth Proportional to 2,146,344.74, 2,961,309.84 and 1,286,591.30
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Solution
The fourth proportional to 2,146,344.74, 2,961,309.84 and 1,286,591.30 is: 1,775,108.82
Step by Step Solution
- Step 1: Write the proportion equation
2,146,344.74 : 2,961,309.84 = 1,286,591.30 : x - Step 2: Convert to fraction form
2,146,344.74/2,961,309.84 = 1,286,591.30/x - Step 3: Cross multiply
2,146,344.74x = 2,961,309.84 × 1,286,591.30 - Step 4: Simplify right side
2,146,344.74x = 3,809,995,476,748.39 - Step 5: Solve for x
x = 3,809,995,476,748.39/2,146,344.74 - Step 6: Final answer
x = 1,775,108.82
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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.