Finding the Fourth Proportional to 1,405,943.92, 1,940,203.65 and 761,364.82
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Solution
The fourth proportional to 1,405,943.92, 1,940,203.65 and 761,364.82 is: 1,050,684.02
Step by Step Solution
- Step 1: Write the proportion equation
1,405,943.92 : 1,940,203.65 = 761,364.82 : x - Step 2: Convert to fraction form
1,405,943.92/1,940,203.65 = 761,364.82/x - Step 3: Cross multiply
1,405,943.92x = 1,940,203.65 × 761,364.82 - Step 4: Simplify right side
1,405,943.92x = 1,477,202,802,745.59 - Step 5: Solve for x
x = 1,477,202,802,745.59/1,405,943.92 - Step 6: Final answer
x = 1,050,684.02
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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.