Finding the Fourth Proportional to 4,042,692.65, 5,578,994.76 and 2,207,155.63
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Solution
The fourth proportional to 4,042,692.65, 5,578,994.76 and 2,207,155.63 is: 3,045,917.84
Step by Step Solution
- Step 1: Write the proportion equation
4,042,692.65 : 5,578,994.76 = 2,207,155.63 : x - Step 2: Convert to fraction form
4,042,692.65/5,578,994.76 = 2,207,155.63/x - Step 3: Cross multiply
4,042,692.65x = 5,578,994.76 × 2,207,155.63 - Step 4: Simplify right side
4,042,692.65x = 12,313,709,682,510.79 - Step 5: Solve for x
x = 12,313,709,682,510.79/4,042,692.65 - Step 6: Final answer
x = 3,045,917.84
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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.