Finding the Fourth Proportional to 745,249.68, 1,028,410.56 and 405,717.12
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Solution
The fourth proportional to 745,249.68, 1,028,410.56 and 405,717.12 is: 559,871.12
Step by Step Solution
- Step 1: Write the proportion equation
745,249.68 : 1,028,410.56 = 405,717.12 : x - Step 2: Convert to fraction form
745,249.68/1,028,410.56 = 405,717.12/x - Step 3: Cross multiply
745,249.68x = 1,028,410.56 × 405,717.12 - Step 4: Simplify right side
745,249.68x = 417,243,770,580.79 - Step 5: Solve for x
x = 417,243,770,580.79/745,249.68 - Step 6: Final answer
x = 559,871.12
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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.