Finding the Fourth Proportional to 1,192,555.20, 1,788,843.48 and 339,626.16
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Solution
The fourth proportional to 1,192,555.20, 1,788,843.48 and 339,626.16 is: 509,442.28
Step by Step Solution
- Step 1: Write the proportion equation
1,192,555.20 : 1,788,843.48 = 339,626.16 : x - Step 2: Convert to fraction form
1,192,555.20/1,788,843.48 = 339,626.16/x - Step 3: Cross multiply
1,192,555.20x = 1,788,843.48 × 339,626.16 - Step 4: Simplify right side
1,192,555.20x = 607,538,041,953.44 - Step 5: Solve for x
x = 607,538,041,953.44/1,192,555.20 - Step 6: Final answer
x = 509,442.28
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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.