Finding the Fourth Proportional to 1,252,838.90, 1,728,918.79 and 679,879.07
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Solution
The fourth proportional to 1,252,838.90, 1,728,918.79 and 679,879.07 is: 938,233.72
Step by Step Solution
- Step 1: Write the proportion equation
1,252,838.90 : 1,728,918.79 = 679,879.07 : x - Step 2: Convert to fraction form
1,252,838.90/1,728,918.79 = 679,879.07/x - Step 3: Cross multiply
1,252,838.90x = 1,728,918.79 × 679,879.07 - Step 4: Simplify right side
1,252,838.90x = 1,175,455,699,050.73 - Step 5: Solve for x
x = 1,175,455,699,050.73/1,252,838.90 - Step 6: Final answer
x = 938,233.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.