Finding the Fourth Proportional to 691,102.47, 1,036,794.65 and 391,716.75
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Solution
The fourth proportional to 691,102.47, 1,036,794.65 and 391,716.75 is: 587,655.01
Step by Step Solution
- Step 1: Write the proportion equation
691,102.47 : 1,036,794.65 = 391,716.75 : x - Step 2: Convert to fraction form
691,102.47/1,036,794.65 = 391,716.75/x - Step 3: Cross multiply
691,102.47x = 1,036,794.65 × 391,716.75 - Step 4: Simplify right side
691,102.47x = 406,129,830,715.39 - Step 5: Solve for x
x = 406,129,830,715.39/691,102.47 - Step 6: Final answer
x = 587,655.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.