Finding the Fourth Proportional to 2,420,623.80, 3,340,328.61 and 1,332,688.80
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Solution
The fourth proportional to 2,420,623.80, 3,340,328.61 and 1,332,688.80 is: 1,839,037.74
Step by Step Solution
- Step 1: Write the proportion equation
2,420,623.80 : 3,340,328.61 = 1,332,688.80 : x - Step 2: Convert to fraction form
2,420,623.80/3,340,328.61 = 1,332,688.80/x - Step 3: Cross multiply
2,420,623.80x = 3,340,328.61 × 1,332,688.80 - Step 4: Simplify right side
2,420,623.80x = 4,451,618,526,866.57 - Step 5: Solve for x
x = 4,451,618,526,866.57/2,420,623.80 - Step 6: Final answer
x = 1,839,037.74
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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.