Finding the Fourth Proportional to 745,266, 1,028,469.52 and 405,736.68
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Solution
The fourth proportional to 745,266, 1,028,469.52 and 405,736.68 is: 559,917.95
Step by Step Solution
- Step 1: Write the proportion equation
745,266 : 1,028,469.52 = 405,736.68 : x - Step 2: Convert to fraction form
745,266/1,028,469.52 = 405,736.68/x - Step 3: Cross multiply
745,266x = 1,028,469.52 × 405,736.68 - Step 4: Simplify right side
745,266x = 417,287,808,525.99 - Step 5: Solve for x
x = 417,287,808,525.99/745,266 - Step 6: Final answer
x = 559,917.95
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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.