Finding the Fourth Proportional to 821,383.84, 1,134,619.14 and 618,964.84
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Solution
The fourth proportional to 821,383.84, 1,134,619.14 and 618,964.84 is: 855,007.51
Step by Step Solution
- Step 1: Write the proportion equation
821,383.84 : 1,134,619.14 = 618,964.84 : x - Step 2: Convert to fraction form
821,383.84/1,134,619.14 = 618,964.84/x - Step 3: Cross multiply
821,383.84x = 1,134,619.14 × 618,964.84 - Step 4: Simplify right side
821,383.84x = 702,289,354,451.04 - Step 5: Solve for x
x = 702,289,354,451.04/821,383.84 - Step 6: Final answer
x = 855,007.51
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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.