Finding the Fourth Proportional to 1,639,582.35, 2,456,079.80 and 816,441.09
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Solution
The fourth proportional to 1,639,582.35, 2,456,079.80 and 816,441.09 is: 1,223,021.50
Step by Step Solution
- Step 1: Write the proportion equation
1,639,582.35 : 2,456,079.80 = 816,441.09 : x - Step 2: Convert to fraction form
1,639,582.35/2,456,079.80 = 816,441.09/x - Step 3: Cross multiply
1,639,582.35x = 2,456,079.80 × 816,441.09 - Step 4: Simplify right side
1,639,582.35x = 2,005,244,464,956.78 - Step 5: Solve for x
x = 2,005,244,464,956.78/1,639,582.35 - Step 6: Final answer
x = 1,223,021.50
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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.