Finding the Fourth Proportional to 1,821,119, 2,513,078.36 and 1,005,305.18
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Solution
The fourth proportional to 1,821,119, 2,513,078.36 and 1,005,305.18 is: 1,387,284.79
Step by Step Solution
- Step 1: Write the proportion equation
1,821,119 : 2,513,078.36 = 1,005,305.18 : x - Step 2: Convert to fraction form
1,821,119/2,513,078.36 = 1,005,305.18/x - Step 3: Cross multiply
1,821,119x = 2,513,078.36 × 1,005,305.18 - Step 4: Simplify right side
1,821,119x = 2,526,410,693,053.90 - Step 5: Solve for x
x = 2,526,410,693,053.90/1,821,119 - Step 6: Final answer
x = 1,387,284.79
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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.