Finding the Fourth Proportional to 1,328,844.62, 1,993,557.60 and 430,377.14
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Solution
The fourth proportional to 1,328,844.62, 1,993,557.60 and 430,377.14 is: 645,659.85
Step by Step Solution
- Step 1: Write the proportion equation
1,328,844.62 : 1,993,557.60 = 430,377.14 : x - Step 2: Convert to fraction form
1,328,844.62/1,993,557.60 = 430,377.14/x - Step 3: Cross multiply
1,328,844.62x = 1,993,557.60 × 430,377.14 - Step 4: Simplify right side
1,328,844.62x = 857,981,618,313.26 - Step 5: Solve for x
x = 857,981,618,313.26/1,328,844.62 - Step 6: Final answer
x = 645,659.85
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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.