Finding the Fourth Proportional to 1,964,428.80, 2,944,569.60 and 1,121,164.80
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Solution
The fourth proportional to 1,964,428.80, 2,944,569.60 and 1,121,164.80 is: 1,680,563.73
Step by Step Solution
- Step 1: Write the proportion equation
1,964,428.80 : 2,944,569.60 = 1,121,164.80 : x - Step 2: Convert to fraction form
1,964,428.80/2,944,569.60 = 1,121,164.80/x - Step 3: Cross multiply
1,964,428.80x = 2,944,569.60 × 1,121,164.80 - Step 4: Simplify right side
1,964,428.80x = 3,301,347,786,670.08 - Step 5: Solve for x
x = 3,301,347,786,670.08/1,964,428.80 - Step 6: Final answer
x = 1,680,563.73
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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.