Finding the Fourth Proportional to 1,781,936.09, 2,456,692.85 and 1,415,628.65
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Solution
The fourth proportional to 1,781,936.09, 2,456,692.85 and 1,415,628.65 is: 1,951,677.62
Step by Step Solution
- Step 1: Write the proportion equation
1,781,936.09 : 2,456,692.85 = 1,415,628.65 : x - Step 2: Convert to fraction form
1,781,936.09/2,456,692.85 = 1,415,628.65/x - Step 3: Cross multiply
1,781,936.09x = 2,456,692.85 × 1,415,628.65 - Step 4: Simplify right side
1,781,936.09x = 3,477,764,782,710.15 - Step 5: Solve for x
x = 3,477,764,782,710.15/1,781,936.09 - Step 6: Final answer
x = 1,951,677.62
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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.