Finding the Fourth Proportional to 647,295.64, 892,902.18 and 405,157.84
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Solution
The fourth proportional to 647,295.64, 892,902.18 and 405,157.84 is: 558,888.85
Step by Step Solution
- Step 1: Write the proportion equation
647,295.64 : 892,902.18 = 405,157.84 : x - Step 2: Convert to fraction form
647,295.64/892,902.18 = 405,157.84/x - Step 3: Cross multiply
647,295.64x = 892,902.18 × 405,157.84 - Step 4: Simplify right side
647,295.64x = 361,766,318,580.09 - Step 5: Solve for x
x = 361,766,318,580.09/647,295.64 - Step 6: Final answer
x = 558,888.85
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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.