Finding the Fourth Proportional to 1,648,907.12, 2,275,486.75 and 913,908.26
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Solution
The fourth proportional to 1,648,907.12, 2,275,486.75 and 913,908.26 is: 1,261,190.59
Step by Step Solution
- Step 1: Write the proportion equation
1,648,907.12 : 2,275,486.75 = 913,908.26 : x - Step 2: Convert to fraction form
1,648,907.12/2,275,486.75 = 913,908.26/x - Step 3: Cross multiply
1,648,907.12x = 2,275,486.75 × 913,908.26 - Step 4: Simplify right side
1,648,907.12x = 2,079,586,136,345.56 - Step 5: Solve for x
x = 2,079,586,136,345.56/1,648,907.12 - Step 6: Final answer
x = 1,261,190.59
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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.