Finding the Fourth Proportional to 745,647.87, 1,029,110.93 and 439,757.88
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Solution
The fourth proportional to 745,647.87, 1,029,110.93 and 439,757.88 is: 606,934.79
Step by Step Solution
- Step 1: Write the proportion equation
745,647.87 : 1,029,110.93 = 439,757.88 : x - Step 2: Convert to fraction form
745,647.87/1,029,110.93 = 439,757.88/x - Step 3: Cross multiply
745,647.87x = 1,029,110.93 × 439,757.88 - Step 4: Simplify right side
745,647.87x = 452,559,635,716.07 - Step 5: Solve for x
x = 452,559,635,716.07/745,647.87 - Step 6: Final answer
x = 606,934.79
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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.