Finding the Fourth Proportional to 409,342.10, 611,134.97 and 312,773.92
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Solution
The fourth proportional to 409,342.10, 611,134.97 and 312,773.92 is: 466,961.69
Step by Step Solution
- Step 1: Write the proportion equation
409,342.10 : 611,134.97 = 312,773.92 : x - Step 2: Convert to fraction form
409,342.10/611,134.97 = 312,773.92/x - Step 3: Cross multiply
409,342.10x = 611,134.97 × 312,773.92 - Step 4: Simplify right side
409,342.10x = 191,147,077,124.28 - Step 5: Solve for x
x = 191,147,077,124.28/409,342.10 - Step 6: Final answer
x = 466,961.69
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.