Finding the Fourth Proportional to 1,915,237.44, 2,643,035.67 and 1,055,778.84
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Solution
The fourth proportional to 1,915,237.44, 2,643,035.67 and 1,055,778.84 is: 1,456,979.21
Step by Step Solution
- Step 1: Write the proportion equation
1,915,237.44 : 2,643,035.67 = 1,055,778.84 : x - Step 2: Convert to fraction form
1,915,237.44/2,643,035.67 = 1,055,778.84/x - Step 3: Cross multiply
1,915,237.44x = 2,643,035.67 × 1,055,778.84 - Step 4: Simplify right side
1,915,237.44x = 2,790,461,133,751.22 - Step 5: Solve for x
x = 2,790,461,133,751.22/1,915,237.44 - Step 6: Final answer
x = 1,456,979.21
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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.