Finding the Fourth Proportional to 1,912,771.24, 2,639,345.24 and 1,085,716.28
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Solution
The fourth proportional to 1,912,771.24, 2,639,345.24 and 1,085,716.28 is: 1,498,130.06
Step by Step Solution
- Step 1: Write the proportion equation
1,912,771.24 : 2,639,345.24 = 1,085,716.28 : x - Step 2: Convert to fraction form
1,912,771.24/2,639,345.24 = 1,085,716.28/x - Step 3: Cross multiply
1,912,771.24x = 2,639,345.24 × 1,085,716.28 - Step 4: Simplify right side
1,912,771.24x = 2,865,580,095,608.51 - Step 5: Solve for x
x = 2,865,580,095,608.51/1,912,771.24 - Step 6: Final answer
x = 1,498,130.06
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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.