Finding the Fourth Proportional to 1,203,857.90, 1,805,973.69 and 405,077.19
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Solution
The fourth proportional to 1,203,857.90, 1,805,973.69 and 405,077.19 is: 607,678.66
Step by Step Solution
- Step 1: Write the proportion equation
1,203,857.90 : 1,805,973.69 = 405,077.19 : x - Step 2: Convert to fraction form
1,203,857.90/1,805,973.69 = 405,077.19/x - Step 3: Cross multiply
1,203,857.90x = 1,805,973.69 × 405,077.19 - Step 4: Simplify right side
1,203,857.90x = 731,558,747,559.13 - Step 5: Solve for x
x = 731,558,747,559.13/1,203,857.90 - Step 6: Final answer
x = 607,678.66
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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.