Finding the Fourth Proportional to 853,621.67, 1,178,021.67 and 471,673.19
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Solution
The fourth proportional to 853,621.67, 1,178,021.67 and 471,673.19 is: 650,922.13
Step by Step Solution
- Step 1: Write the proportion equation
853,621.67 : 1,178,021.67 = 471,673.19 : x - Step 2: Convert to fraction form
853,621.67/1,178,021.67 = 471,673.19/x - Step 3: Cross multiply
853,621.67x = 1,178,021.67 × 471,673.19 - Step 4: Simplify right side
853,621.67x = 555,641,238,978.03 - Step 5: Solve for x
x = 555,641,238,978.03/853,621.67 - Step 6: Final answer
x = 650,922.13
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.