Finding the Fourth Proportional to 1,405,220.58, 2,107,889.19 and 407,948.58
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Solution
The fourth proportional to 1,405,220.58, 2,107,889.19 and 407,948.58 is: 611,939.80
Step by Step Solution
- Step 1: Write the proportion equation
1,405,220.58 : 2,107,889.19 = 407,948.58 : x - Step 2: Convert to fraction form
1,405,220.58/2,107,889.19 = 407,948.58/x - Step 3: Cross multiply
1,405,220.58x = 2,107,889.19 × 407,948.58 - Step 4: Simplify right side
1,405,220.58x = 859,910,401,857.85 - Step 5: Solve for x
x = 859,910,401,857.85/1,405,220.58 - Step 6: Final answer
x = 611,939.80
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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.