Finding the Fourth Proportional to 853,796.21, 1,178,138.43 and 471,800.21
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Solution
The fourth proportional to 853,796.21, 1,178,138.43 and 471,800.21 is: 651,028.84
Step by Step Solution
- Step 1: Write the proportion equation
853,796.21 : 1,178,138.43 = 471,800.21 : x - Step 2: Convert to fraction form
853,796.21/1,178,138.43 = 471,800.21/x - Step 3: Cross multiply
853,796.21x = 1,178,138.43 × 471,800.21 - Step 4: Simplify right side
853,796.21x = 555,845,952,792.38 - Step 5: Solve for x
x = 555,845,952,792.38/853,796.21 - Step 6: Final answer
x = 651,028.84
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1.5x scale
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.