Finding the Fourth Proportional to 2,972,286.24, 4,103,455.68 and 1,956,643.68
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Solution
The fourth proportional to 2,972,286.24, 4,103,455.68 and 1,956,643.68 is: 2,701,287.82
Step by Step Solution
- Step 1: Write the proportion equation
2,972,286.24 : 4,103,455.68 = 1,956,643.68 : x - Step 2: Convert to fraction form
2,972,286.24/4,103,455.68 = 1,956,643.68/x - Step 3: Cross multiply
2,972,286.24x = 4,103,455.68 × 1,956,643.68 - Step 4: Simplify right side
2,972,286.24x = 8,029,000,622,432.10 - Step 5: Solve for x
x = 8,029,000,622,432.10/2,972,286.24 - Step 6: Final answer
x = 2,701,287.82
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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.