Finding the Fourth Proportional to 1,405,405.62, 1,939,460.41 and 760,825.82
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Solution
The fourth proportional to 1,405,405.62, 1,939,460.41 and 760,825.82 is: 1,049,939.99
Step by Step Solution
- Step 1: Write the proportion equation
1,405,405.62 : 1,939,460.41 = 760,825.82 : x - Step 2: Convert to fraction form
1,405,405.62/1,939,460.41 = 760,825.82/x - Step 3: Cross multiply
1,405,405.62x = 1,939,460.41 × 760,825.82 - Step 4: Simplify right side
1,405,405.62x = 1,475,591,556,795.79 - Step 5: Solve for x
x = 1,475,591,556,795.79/1,405,405.62 - Step 6: Final answer
x = 1,049,939.99
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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.