Finding the Fourth Proportional to 802,474.84, 1,107,408.06 and 439,919.32
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Solution
The fourth proportional to 802,474.84, 1,107,408.06 and 439,919.32 is: 607,084.70
Step by Step Solution
- Step 1: Write the proportion equation
802,474.84 : 1,107,408.06 = 439,919.32 : x - Step 2: Convert to fraction form
802,474.84/1,107,408.06 = 439,919.32/x - Step 3: Cross multiply
802,474.84x = 1,107,408.06 × 439,919.32 - Step 4: Simplify right side
802,474.84x = 487,170,200,717.72 - Step 5: Solve for x
x = 487,170,200,717.72/802,474.84 - Step 6: Final answer
x = 607,084.70
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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.