Finding the Fourth Proportional to 838,381.74, 1,263,221.42 and 691,902.96
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Solution
The fourth proportional to 838,381.74, 1,263,221.42 and 691,902.96 is: 1,042,516.31
Step by Step Solution
- Step 1: Write the proportion equation
838,381.74 : 1,263,221.42 = 691,902.96 : x - Step 2: Convert to fraction form
838,381.74/1,263,221.42 = 691,902.96/x - Step 3: Cross multiply
838,381.74x = 1,263,221.42 × 691,902.96 - Step 4: Simplify right side
838,381.74x = 874,026,639,633.40 - Step 5: Solve for x
x = 874,026,639,633.40/838,381.74 - Step 6: Final answer
x = 1,042,516.31
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.