Finding the Fourth Proportional to 1,097,979.84, 1,647,077.94 and 378,379.08
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Solution
The fourth proportional to 1,097,979.84, 1,647,077.94 and 378,379.08 is: 567,605.90
Step by Step Solution
- Step 1: Write the proportion equation
1,097,979.84 : 1,647,077.94 = 378,379.08 : x - Step 2: Convert to fraction form
1,097,979.84/1,647,077.94 = 378,379.08/x - Step 3: Cross multiply
1,097,979.84x = 1,647,077.94 × 378,379.08 - Step 4: Simplify right side
1,097,979.84x = 623,219,835,625.50 - Step 5: Solve for x
x = 623,219,835,625.50/1,097,979.84 - Step 6: Final answer
x = 567,605.90
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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.