Finding the Fourth Proportional to 1,821,163.60, 2,513,226.08 and 1,005,367.68
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Solution
The fourth proportional to 1,821,163.60, 2,513,226.08 and 1,005,367.68 is: 1,387,418.61
Step by Step Solution
- Step 1: Write the proportion equation
1,821,163.60 : 2,513,226.08 = 1,005,367.68 : x - Step 2: Convert to fraction form
1,821,163.60/2,513,226.08 = 1,005,367.68/x - Step 3: Cross multiply
1,821,163.60x = 2,513,226.08 × 1,005,367.68 - Step 4: Simplify right side
1,821,163.60x = 2,526,716,275,878.51 - Step 5: Solve for x
x = 2,526,716,275,878.51/1,821,163.60 - Step 6: Final answer
x = 1,387,418.61
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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.