Finding the Fourth Proportional to 1,405,327.73, 2,107,676.09 and 646,440.35
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Solution
The fourth proportional to 1,405,327.73, 2,107,676.09 and 646,440.35 is: 969,515.39
Step by Step Solution
- Step 1: Write the proportion equation
1,405,327.73 : 2,107,676.09 = 646,440.35 : x - Step 2: Convert to fraction form
1,405,327.73/2,107,676.09 = 646,440.35/x - Step 3: Cross multiply
1,405,327.73x = 2,107,676.09 × 646,440.35 - Step 4: Simplify right side
1,405,327.73x = 1,362,486,860,383.95 - Step 5: Solve for x
x = 1,362,486,860,383.95/1,405,327.73 - Step 6: Final answer
x = 969,515.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.