Finding the Fourth Proportional to 745,251.88, 1,028,458.74 and 405,725.80
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Solution
The fourth proportional to 745,251.88, 1,028,458.74 and 405,725.80 is: 559,907.67
Step by Step Solution
- Step 1: Write the proportion equation
745,251.88 : 1,028,458.74 = 405,725.80 : x - Step 2: Convert to fraction form
745,251.88/1,028,458.74 = 405,725.80/x - Step 3: Cross multiply
745,251.88x = 1,028,458.74 × 405,725.80 - Step 4: Simplify right side
745,251.88x = 417,272,245,053.49 - Step 5: Solve for x
x = 417,272,245,053.49/745,251.88 - Step 6: Final answer
x = 559,907.67
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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.