Finding the Fourth Proportional to 853,744.28, 1,178,167.53 and 471,771.07
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Solution
The fourth proportional to 853,744.28, 1,178,167.53 and 471,771.07 is: 651,044.31
Step by Step Solution
- Step 1: Write the proportion equation
853,744.28 : 1,178,167.53 = 471,771.07 : x - Step 2: Convert to fraction form
853,744.28/1,178,167.53 = 471,771.07/x - Step 3: Cross multiply
853,744.28x = 1,178,167.53 × 471,771.07 - Step 4: Simplify right side
853,744.28x = 555,825,353,321.94 - Step 5: Solve for x
x = 555,825,353,321.94/853,744.28 - Step 6: Final answer
x = 651,044.31
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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.