Finding the Fourth Proportional to 861,383.56, 1,292,193.53 and 292,611.95
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Solution
The fourth proportional to 861,383.56, 1,292,193.53 and 292,611.95 is: 438,958.07
Step by Step Solution
- Step 1: Write the proportion equation
861,383.56 : 1,292,193.53 = 292,611.95 : x - Step 2: Convert to fraction form
861,383.56/1,292,193.53 = 292,611.95/x - Step 3: Cross multiply
861,383.56x = 1,292,193.53 × 292,611.95 - Step 4: Simplify right side
861,383.56x = 378,111,268,590.68 - Step 5: Solve for x
x = 378,111,268,590.68/861,383.56 - Step 6: Final answer
x = 438,958.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.