Finding the Fourth Proportional to 1,515,214.19, 2,091,039.67 and 826,930.32
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Solution
The fourth proportional to 1,515,214.19, 2,091,039.67 and 826,930.32 is: 1,141,187.90
Step by Step Solution
- Step 1: Write the proportion equation
1,515,214.19 : 2,091,039.67 = 826,930.32 : x - Step 2: Convert to fraction form
1,515,214.19/2,091,039.67 = 826,930.32/x - Step 3: Cross multiply
1,515,214.19x = 2,091,039.67 × 826,930.32 - Step 4: Simplify right side
1,515,214.19x = 1,729,144,103,445.79 - Step 5: Solve for x
x = 1,729,144,103,445.79/1,515,214.19 - Step 6: Final answer
x = 1,141,187.90
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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.