Finding the Fourth Proportional to 1,387,629.31, 2,081,586.75 and 523,791.84
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Solution
The fourth proportional to 1,387,629.31, 2,081,586.75 and 523,791.84 is: 785,741.66
Step by Step Solution
- Step 1: Write the proportion equation
1,387,629.31 : 2,081,586.75 = 523,791.84 : x - Step 2: Convert to fraction form
1,387,629.31/2,081,586.75 = 523,791.84/x - Step 3: Cross multiply
1,387,629.31x = 2,081,586.75 × 523,791.84 - Step 4: Simplify right side
1,387,629.31x = 1,090,318,153,902.12 - Step 5: Solve for x
x = 1,090,318,153,902.12/1,387,629.31 - Step 6: Final answer
x = 785,741.66
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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.