Finding the Fourth Proportional to 853,961.54, 1,178,464.75 and 486,438.62
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Solution
The fourth proportional to 853,961.54, 1,178,464.75 and 486,438.62 is: 671,284.05
Step by Step Solution
- Step 1: Write the proportion equation
853,961.54 : 1,178,464.75 = 486,438.62 : x - Step 2: Convert to fraction form
853,961.54/1,178,464.75 = 486,438.62/x - Step 3: Cross multiply
853,961.54x = 1,178,464.75 × 486,438.62 - Step 4: Simplify right side
853,961.54x = 573,250,759,600.23 - Step 5: Solve for x
x = 573,250,759,600.23/853,961.54 - Step 6: Final answer
x = 671,284.05
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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.