Finding the Fourth Proportional to 1,081,778.40, 1,622,821.20 and 333,746.40
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Solution
The fourth proportional to 1,081,778.40, 1,622,821.20 and 333,746.40 is: 500,666.99
Step by Step Solution
- Step 1: Write the proportion equation
1,081,778.40 : 1,622,821.20 = 333,746.40 : x - Step 2: Convert to fraction form
1,081,778.40/1,622,821.20 = 333,746.40/x - Step 3: Cross multiply
1,081,778.40x = 1,622,821.20 × 333,746.40 - Step 4: Simplify right side
1,081,778.40x = 541,610,733,343.68 - Step 5: Solve for x
x = 541,610,733,343.68/1,081,778.40 - Step 6: Final answer
x = 500,666.99
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1.5x scale
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.