Finding the Fourth Proportional to 422,679.75, 583,357.73 and 261,586.68
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Solution
The fourth proportional to 422,679.75, 583,357.73 and 261,586.68 is: 361,026.55
Step by Step Solution
- Step 1: Write the proportion equation
422,679.75 : 583,357.73 = 261,586.68 : x - Step 2: Convert to fraction form
422,679.75/583,357.73 = 261,586.68/x - Step 3: Cross multiply
422,679.75x = 583,357.73 × 261,586.68 - Step 4: Simplify right side
422,679.75x = 152,598,611,843.04 - Step 5: Solve for x
x = 152,598,611,843.04/422,679.75 - Step 6: Final answer
x = 361,026.55
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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.