Finding the Fourth Proportional to 691,103.09, 1,036,795.58 and 391,717.37
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Solution
The fourth proportional to 691,103.09, 1,036,795.58 and 391,717.37 is: 587,655.94
Step by Step Solution
- Step 1: Write the proportion equation
691,103.09 : 1,036,795.58 = 391,717.37 : x - Step 2: Convert to fraction form
691,103.09/1,036,795.58 = 391,717.37/x - Step 3: Cross multiply
691,103.09x = 1,036,795.58 × 391,717.37 - Step 4: Simplify right side
691,103.09x = 406,130,837,825.23 - Step 5: Solve for x
x = 406,130,837,825.23/691,103.09 - Step 6: Final answer
x = 587,655.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.