Finding the Fourth Proportional to 1,203,927.62, 1,806,169.35 and 405,189.65
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Solution
The fourth proportional to 1,203,927.62, 1,806,169.35 and 405,189.65 is: 607,878.01
Step by Step Solution
- Step 1: Write the proportion equation
1,203,927.62 : 1,806,169.35 = 405,189.65 : x - Step 2: Convert to fraction form
1,203,927.62/1,806,169.35 = 405,189.65/x - Step 3: Cross multiply
1,203,927.62x = 1,806,169.35 × 405,189.65 - Step 4: Simplify right side
1,203,927.62x = 731,841,117,736.38 - Step 5: Solve for x
x = 731,841,117,736.38/1,203,927.62 - Step 6: Final answer
x = 607,878.01
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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.